Stasis dermatitis ICD code 10. L30.9 Dermatitis, unspecified

You can find the ICD 10 code for dermatitis in the class of diseases of the skin and subcutaneous fat. Since the pathology has a large number of varieties, it occupies an entire section of dermatitis and eczema in the ICD 10 revision.

It should be noted that in this document, dermatitis and eczema are used interchangeably as synonyms.

The section includes the following types of pathological processes:

• L20 – atopic form of the lesion (manifestation of an allergic reaction);
• L21 – seborrheic skin lesions;
• L22 – diaper-type dermatitis (in young children due to mechanical irritation of the skin);
• L23 – allergic contact inflammatory process (represents an allergy of a local nature, for example, due to household chemicals);
• L24 – simple contact irritation;
• L25 – unspecified contact pathology;;
• L26 – exfoliative variant of skin lesions;
• L27 – skin pathology caused by the ingestion of various substances into the body (for example, drugs);
• L28 – lichen simplex and prurigo;
• L29 – itching;
• L30 – other variants of the pathological process on the skin.

Despite the fact that in ICD 10 dermatitis has a code determined by the etiological factor, the principles of diagnosis and treatment of the disease differ little. The main action of the doctor is to identify the cause of the formation of rashes and eliminate these factors from the patient’s life.

Features of diagnosis and treatment

Making a correct diagnosis for this type of skin lesion is made difficult by the large number of conditions that can cause this condition.

The doctor carefully questions the medical history, trying to find out what exactly triggered the pathological process.

In addition to the interview and examination, there are laboratory tests and allergy-specific techniques, such as skin tests. Before conducting a provocative test, the doctor makes sure that there is no acute process, which he relieves with medications.

The basic principles of treatment of the pathological process are based on eliminating the aggressor affecting the skin. To relieve symptoms (rashes, swelling, redness and itching), topical creams and ointments with antihistamines or corticosteroid hormones are used. These same medications can be prescribed systemically for severe forms of the disease. The doctor should take into account that in ICD 10, dermatitis is divided into many points, each of which also has divisions. To view the treatment protocol, it is important to establish the diagnosis as accurately as possible.

Contact dermatitis is an acute or chronic inflammatory skin disease caused by the irritating or sensitizing effect of exogenous factors. Incidence: 669.2 per 100,000 population in 2001.

Code according to the international classification of diseases ICD-10:

Classification Primary irritation dermatitis (simple contact dermatitis) Allergic contact dermatitis (ACD) Phototoxic dermatitis (see Photodermatitis).

Causes

Allergic dermatitis is a skin disease caused by contact with an external irritant. Unlike others, the cause of this type of disease can be not only mechanical contact with the allergen. In this case, irritants can be:

• medicines;
• cosmetical tools;
• perfumery;
• paints;
• natural and artificial polymer materials;
• metals;
• substances of industrial origin.

The main cause of allergic dermatitis is increased sensitivity to the irritant. Despite local exposure to the allergen, the course of the disease can manifest itself in symptoms throughout the body.

Typically, sensitization or hypersensitivity develops to one allergen or a group of chemically similar substances.

The history of development in each patient begins with the start of the sensitization process at the moment of contact with an irritating substance. The prevalence of a disease is not a sign of its safety.

On the contrary, allergic dermatitis requires comprehensive and immediate treatment. Especially when it comes to pregnant women and children.

In simple cases, the disease can be cured at home. However, treatment should be under the supervision of a doctor. If it develops into a severe preclinical stage with swelling of the throat and suffocation, immediate hospitalization of the patient is required.

What causes the disease

Allergic dermatitis develops as a reaction of the body to local irritants. In essence, dermatitis, including allergic ones, can be triggered by external and internal irritants.

Moreover, the size of the allergen or its concentration is usually so small that the immune system is simply not able to immediately recognize them.

Therefore, the appearance of symptoms in allergic dermatitis is a long story. In other cases, the allergen binds to blood proteins, thus forming a large irritant.

Doctors believe that allergic dermatitis can manifest itself over a fairly long period of time. In different situations, it takes from two days to two weeks after direct contact with the allergen.

Treatment of dermatitis, especially allergic ones, is complicated by the duration of development of the first symptoms. Sometimes even in a clinical setting it is difficult to recognize the stimulus.

In adults, the course of the disease can be slow and the first symptoms appear when the person no longer remembers what could have caused it.

However, practical experience in the treatment of allergic dermatitis has made it possible to identify the most common irritants among everyday substances and food products:

Etiology unknown.

Pathogenesis: polyvalent (less often monovalent) sensitization of the skin, as a result of which it reacts inadequately to various exogenous and endogenous influences.

Sensitization is promoted by stressful experiences, endocrinopathies, diseases of the gastrointestinal tract, liver, as well as mycoses of the feet, chronic pyococcal processes and allergic diseases.

In childhood, eczema is pathogenetically associated with exudative diathesis.

Symptoms (signs)

Clinical picture

A pathognomonic sign is a sharply demarcated edge of the lesion.

The process primarily involves areas of skin with a thin epidermis (eyelids, genitals, etc.).

The skin of the palms and soles is most resistant to irritation; The skin of deep folds is not affected.

Forms of contact dermatitis Simple contact dermatitis - erythematous, vesicular - bullous, necrotic - ulcerative ADC Acute form: papules, blisters, blisters with surrounding erythema, weeping, itching.

Initially, rashes appear only at the site of contact with an irritating substance or allergen; subsequently they can spread. Chronic form: thickening with lichenification, erythema, peeling, and in some cases erosion.

Clinical picture. Eczema is observed at any age, on any part of the skin (usually on the face and upper extremities).

There are true, microbial, seborrheic and occupational eczema.
True eczema occurs acutely, subacutely and chronically.

Acute eczema is characterized by bright edematous erythema with multiple tiny blisters, when opened, point erosions are formed with abundant weeping, the formation of crusts and scales.

Subjectively - burning and itching. The duration of acute eczema is 1.5 - 2 months.

In the subacute course, inflammatory phenomena are less pronounced:
the color of the lesions becomes bluish-pink, swelling and weeping are moderate, burning and itching subside; infiltration joins.

The duration of the process is up to six months. In the chronic course, the clinical picture is dominated by skin infiltration; blisters and weeping erosions are difficult to detect, subjectively itching.

A type of true eczema is dyshidrotic eczema, which is localized on the palms and soles and is manifested by abundant blisters, sometimes merging into continuous foci, and multi-chamber blisters with a dense covering, when opened, weeping areas are exposed, bordered by a fringe of the stratum corneum.

Microbial eczema, in the pathogenesis of which sensitization to microorganisms (usually pyococci) plays a significant role, is characterized by an asymmetrical location, often on the extremities, rounded outlines, clear boundaries of the exfoliating stratum corneum, the presence of pustules and is often associated with fistulas, long-term non-healing wounds, trophic ulcers (paratraumatic eczema).

The course is indefinitely long, recurrent
Seborrheic eczema is pathogenetically related to seborrhea. Occurs in infancy and after puberty.

It is localized on the scalp, behind the ears, in the chest area and between the shoulder blades.
Its peculiar features are a yellowish color, a layer of fatty scales, the absence of pronounced weeping, mild infiltration, and the tendency of the lesions to regress in the center with simultaneous growth along the periphery.

Occupational eczema, morphologically similar to true eczema, affects exposed areas of the skin (hands, forearms, neck and face), which are primarily exposed to the harmful effects of chemical irritants in production conditions, and has a less persistent course, since sensitization with it is not polyvalent , but monovalent in nature.

Allergy skin tests are used for diagnostic purposes.

Symptoms and course

Depending on the stage and form, allergic dermatitis can manifest itself in different ways.

The skin's reaction to contact with an irritant is manifested by a rash - moderately severe or affecting large areas. The nature and localization of the rash depends on the type of allergic dermatitis and the duration of exposure to the allergen:

• a mild form of the disease is accompanied by small islands of pink-colored bubbles with non-inflamed skin between them;
• extensive damage is expressed by dense nodules, swelling of the skin, severe itching and increased body temperature;
• with erythema, a reddish ring-shaped rash appears, in the center of which the skin looks healthy, the boundaries are clearly defined, and the spots themselves swell.

The onset of the disease is considered to be the moment of contact with the irritant. Regardless of the nature of the manifestations, treatment must be started immediately.

Allergic dermatitis can be caused by external and internal irritants. Moreover, even a minimal amount of allergen can cause a very strong response, since the immune system does not always recognize small doses of pathogens and does not immediately respond to them.

Each type of allergic dermatitis with ICD-10 code L23 has certain stages of complications. There are 2 phases in the course of the disease:

• the acute phase is an acute dermatitis that develops immediately after exposure to the irritant and is accompanied by the appearance of vesicles, on which scales then appear;
• The chronic phase is characterized by intensely itchy, flat rashes that ooze exudate.

The most dangerous stage is acute allergic dermatitis, complicated by swelling of the larynx.

Chronic dermatitis occurs in the form of alternating periods of remission and exacerbations. The duration of remission depends on the severity of the disease and can range from 2–3 weeks to several years.

At this time, inflammation completely disappears or becomes barely noticeable. During the period of remission, it is necessary to avoid contact with irritants to which the immune system reacts.

Diagnosis and treatment

Research methods If ACD is suspected, a skin patch test is performed with a standard set of contact allergens attached to a patch tape that fixes them on the skin for 48–72 hours.

The reaction is assessed 20 minutes after removal of the allergen. Identification of a possible photosensitizer.

Differential diagnosis Infections caused by HSV Bullous pemphigoid Seborrheic dermatitis Atopic dermatitis.

To determine the etiological factor of allergic dermatitis with ICD-10 code L23, skin or provocative allergy tests are performed. Before finding out the cause in an evidentiary way, the severity of the inflammatory process is first relieved.

Since there are too many allergens in nature, it is first determined which of them the patient considers likely.

Although allergic dermatitis is coded in ICD-10 according to the etiological factor, the treatment of different types of the disease does not differ significantly. First, the effect of the irritant or the cause that caused this pathology is eliminated, and then the necessary therapy is carried out.

In the early stages, the disease of any form can be completely cured.

Treatment of allergic dermatitis with ICD-10 code L23 is carried out according to the following scheme:

1. Taking antihistamines to relieve itching, irritation, swelling - Ebastine, Astemizole, Loratadine, Claritin, Claritidin, Tavegil are recommended.
2. Carrying out detoxification (in difficult cases) using activated carbon or sodium thiosulfate.
3. Local treatment using ointments and creams - “Sinaflan”, “Akriderm” and others.

Also, in acute forms of dermatitis, glucocorticoids can be prescribed to relieve inflammation. In the chronic phase, external glucocorticoids and additionally antihistamines are often used.

Therapy will be most effective if the pathogen is detected early. The longer an allergen affects the body, the more harm it causes it.

The local influence of the allergen can spread throughout the body over time and develop into a complication stage, accompanied by swelling of the throat and symptoms of suffocation.

The treatment process is complicated by the fact that the irritant is often difficult to recognize, and the disease progresses slowly. Therefore, a person may not notice the reasons that caused the first symptoms to appear.

Any prescriptions for the treatment of allergic dermatitis with ICD-10 code L23, regardless of the phase and complexity of the disease, should be performed only by a specialist.

He will select the optimal drugs for a particular case that can cure the disease with minimal side effects. We must not forget that the effectiveness of recovery depends on the timeliness and correctness of treatment.

Treatment

Management tactics The impact of a possible etiological factor should be eliminated. Diet excluding spicy foods and alcoholic beverages; limiting table salt and carbohydrates.

Drug therapy

Locally Cold disinfectant lotions with 2% r - resorcinol rum, 3% r - boric acid rum, Burov's liquid (1:40 dilution) HA - ointments with high activity, for example, fluacinolone acetonide (0.025% ointment) 3-4 r/ days, preferably under a compress.

Systemic GC (only in severe forms with a large area of ​​damage), usually prednisolone 0.5–1 mg/kg/day with gradual withdrawal over 10–14 days Antihistamines - hydroxyzine 25–50 mg 4 times a day or diphenhydramine 25–50 mg 4 times a day If a secondary infection occurs, antibiotics: erythromycin 250 mg 4 times a day.

Complications Addition of pyogenic, yeast infection Malignancy in radiation dermatitis (radiation cancer) Transformation of allergic dermatitis into eczema.

The prognosis is favorable.

The ointment can eliminate external manifestations.

The disease can be cured in its early stages at home. To treat various symptoms use:

• antihistamines (Tavegil, Telfast, Claritin, Claritidine) help relieve itching and reduce swelling. Modern drugs for the treatment of allergies do not cause drowsiness and absent-mindedness. Most of them can be used to treat dermatitis in pregnant women and children.
• detoxification therapy to treat severe stages of allergies. Activated carbon, Laticort and sodium thiosulfate are commonly used. The latter drug is prescribed intravenously. It should not be used at home or used independently to treat pregnant women and children.
• creams and ointments are used topically to eliminate external manifestations. Among the popular products are Akriderm, Sinaflan, and other creams containing zinc. If the rash is wet, it is recommended to smear it with antiseptic agents and apply bandages. Topical treatment is safe for all persons, including pregnant women.

Treatment involves identifying and eliminating the irritating factor and treating concomitant diseases. The skin, especially the affected areas, should be spared as much as possible from local irritation.

The diet during exacerbations is predominantly dairy-vegetable. Antihistamines and sedatives, including tranquilizers, are prescribed.

For acute symptoms accompanied by swelling and weeping, use diuretics, calcium supplements, ascorbic acid and rutin. Locally - for swelling and weeping, lotions from solutions of rivanol, furatsilin; to eliminate them - pastes (2 - 5% boron-naphthalan, boron-tar, etc.

), then ointments (sulfur, naphthalan, tar); in case of sudden infiltration - thermal procedures. At all stages, corticosteroid ointments are widely indicated (for pyococcal complications - combined with antimicrobial components).

For stubborn, delimited lesions, especially dyshidrotic eczema, use ultra-soft x-rays. Common, persistent forms require oral corticosteroids.

Severe forms are subject to treatment in a hospital followed by spa therapy.

Prevention, prognosis. Correction of neurogenic abnormalities and concomitant diseases, especially mycoses of the feet and pyococcal lesions; timely treatment of exudative diathesis and seborrheic conditions; avoiding contact with chemical irritants at work (employment) and at home.

The prognosis of true eczema with regard to complete cure is questionable, while that of other forms is more favorable.

ICD-10 diagnosis code L30.9

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Daria 2 weeks ago

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megan92 13 days ago

Daria 12 days ago

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Description

Many people are interested in what is chronic eczema? This phrase refers to the inflammatory process of the skin.

A distinctive feature is, as a rule, constant relapses of the disease. With proper treatment, stable remission can be achieved, but this will require quite a lot of patience and perseverance.

ICD 10 coding for chronic eczema varies depending on the type of disease and the factor that provoked it.

The range of values ​​is from L20 to L30. Based on the results of the tests and examinations, the doctor makes an accurate diagnosis and classifies chronic eczema using ICD 10.

Coin-shaped (numular) eczema is a form of eczema characterized by the presence of often generalized, intensely itchy, round (coin-shaped) foci of eczematous inflammation. Adults get sick more often, men more often than women.

The onset is gradual, without obvious worsening and without a history of eczema. Coin-shaped eczema often begins with a few isolated lesions on the legs; Over time, multiple lesions appear without any specific location.

The lesions often resolve or improve with topical corticosteroids, but sometimes return to the same location when they are stopped.

Contact dermatitis is an acute or chronic inflammatory skin disease caused by the irritating or sensitizing effect of exogenous factors. Incidence: 669.2 per 100,000 population in 2001.

Classification Primary irritation dermatitis (simple contact dermatitis) Allergic contact dermatitis (ACD) Phototoxic dermatitis (see Photodermatitis).

The chronic form of eczema appears on any part of the body, mainly on the face and hands. This disease can affect anyone at any age, but women are more susceptible to it.

1.2 Etiology and pathogenesis

Eczema develops as a result of the complex influence of etiological and pathogenetic factors, including neuroendocrine, metabolic, infectious-allergic, vegetative-vascular and hereditary.

Caused by exogenous (bacterial and fungal agents, chemicals, physical factors, drugs, foods, etc.) and endogenous factors (antigenic determinants of microorganisms from foci of chronic infection).

Genetic predisposition determines disruption of immune regulation, function of the nervous and endocrine systems. In eczema, polygenic multifactorial inheritance with pronounced expressivity and penetrance of genes is noted.

If one of the parents (mainly the mother) is ill, the child’s chance of developing eczema is approximately 40%; if both parents are ill, it is 50%-60%. The leading role in the pathogenesis belongs to immune inflammation in the skin against the background of suppression of cellular and humoral immunity, inhibition of nonspecific resistance and immunogenetic characteristics (association with HLA-B22 and HLA-C1 antigens) of the body.

According to modern concepts, the main role in the development of eczema is played by T-lymphocytes (mainly Th-1), which carry specific antigen receptors on their surface and secrete a number of pro-inflammatory cytokines: interleukin-1 (IL-1), IL-2, TNF- ?, ?-interferon.

The release of biologically active substances (prostaglandins, leukotrienes, histamine) causes the development of tissue inflammatory reactions, which is clinically manifested by hyperemia, edema, and itching. As a rule, eczema is characterized by polyvalent sensitization and autosensitization, an imbalance between the activities of the sympathetic and parasympathetic parts of the autonomic nervous system (with a predominance of the latter), and changes in the functional nature.

Causes

There are quite a lot of factors that can provoke such an illness. The main cause is considered to be constant allergic reactions. Sometimes a person simply does not pay attention to the fact that he is allergic to something.

The disease is caused by skin contact with an allergen. Such irritants may include:

• chemical substances;
• coloring matter;
• household chemicals;
• some food products;
• medications;
• perfumery;
• cosmetical tools;
• some materials, including construction materials.

In this disease, the skin reacts sharply to contact with an irritant, resulting in a characteristic rash. All people are equally susceptible to the disease, regardless of age and gender.

The list of irritants that cause dermatitis is very long. Each patient can detect an individual skin reaction to seemingly safe substances and materials.

The development of eczema occurs due to various factors affecting the body in a complex manner.

Etiology unknown.

Pathogenesis: polyvalent (less often monovalent) sensitization of the skin, as a result of which it reacts inadequately to various exogenous and endogenous influences.

Sensitization is promoted by stressful experiences, endocrinopathies, diseases of the gastrointestinal tract, liver, as well as mycoses of the feet, chronic pyococcal processes and allergic diseases.

In childhood, eczema is pathogenetically associated with exudative diathesis.

ICD-10 – what is it?

This disease has 9 types. For the most part, they all relate to the fact that a person came into contact with or used products, both cosmetic and chemical, which caused skin irritation. This group also includes dermatitis caused by the patient’s contact with a certain food product. But at the same time, if you ate it, this is a different type of dermatitis.

This type of dermatitis involves applying special ointments to areas of the skin in contact with irritants. Hormonal corticosteroids are usually used. Zinc oxide is also prescribed for additional disinfection treatment.

This diagnosis is easy to confuse with the previous one, but it differs in that not only the area of ​​the body that came into contact with the allergen suffers, but a systemic allergic reaction is actively taking place in the body.

Therapy usually begins with eliminating the allergen from the patient’s environment. If you must still come into contact with an allergen at work, you must use protective equipment such as a face mask and gloves. Since these are still types of ICD contact dermatitis.

With this disease, the skin is affected by the sebaceous glands. This type of dermatitis progresses slowly, but causes significant discomfort to patients. Moreover, the amount of sebum produced by the skin increases, and pathogenic microorganisms take advantage of this.

Microorganisms significantly aggravate the situation.

This disease often begins with seboria. But in fact, seborrhea does not in all cases lead to seborrheic dermatitis. The ICD distinguishes 4 types:

• seborrhea of ​​the head;
• seborrheic infantile dermatitis;
• other seborrheic dermatitis;
• seborrheic dermatitis, unspecified.

This type of dermatitis differs in that the itching is quite severe. In addition, specific plaques form. The skin also peels. If dermatitis appears on the head, then all this is accompanied by severe dandruff.

It is almost impossible to independently distinguish seborrheic dermatitis from other skin diseases. To make a diagnosis, it is necessary to conduct a mycological and microscopic examination with the study of skin scales for pathogenic fungi. In some cases, a biopsy is resorted to.

Treatment of this disease is somewhat difficult. It is necessary to fight not only the acute process, but also carry out constant maintenance therapy, since this disease is chronic. Under no circumstances should seborrheic dermatitis be allowed to develop; this can seriously affect the condition of both the skin and the entire body.

The disease allergic dermatitis is a skin ailment that can affect a person at any age. In addition, allergic dermatitis occurs even in pregnant women, which is very dangerous. According to the international classification according to ICD-10, the disease has code L23. We will learn the causes and methods of treating allergic dermatitis from this material.

A skin disease that is triggered by contact with external irritants is called allergic dermatitis. The reason for the formation of this type of skin disease is not only the mechanical method of exposure. Allergies occur through inhalation of irritants, which occurs in frequent cases. Allergic dermatitis can appear due to the following factors:

• perfumery;
• paint and varnish and polymer materials;
• metals;
• medicines.

The underlying cause of the development of the disease is excessive sensitivity to allergens. Their local influence can cause the disease to spread throughout the body. You can cure a dermatic disease yourself at home, but first visit a doctor. The danger of the disease is due to the fact that dermatitis can develop into a complication stage, causing swelling of the throat and symptoms of suffocation. In this case, it is necessary to hospitalize the patient.

What causes the disease

Allergic dermatitis is provoked through the influence of both external and internal irritants. Their volumes are too small for the immune system to recognize it in time. If the provocateur of the disease comes into contact with blood proteins, then in this case an irritant is formed in large sizes.

Allergic dermatitis is a disease that is very often diagnosed in both adults and children, and patients with dermatitis often come across such a concept as the ICD code for allergic dermatitis - 10: what is this code and why is it needed?

Before determining the ICD-10 code for dermatitis, you should understand what kind of disease it is, what types and manifestations of dermatitis there are.

ICD-10 is the international classification of diseases, 10th revision. This classification was developed by WHO and is considered generally accepted among all health workers from around the world.

The classification contains 21 sections, each of which is divided into subsections with codes for various diseases and conditions.

ICD-10 helps doctors systematically study and interpret diseases and statistical data obtained in different years and in different parts of the world.

ICD-10 converts the verbal names of various diseases and conditions of patients into a special alphanumeric code.

It is very convenient and simple to store and enter data, as well as analyze it using such code.

ICD-10 is a generally accepted international standard that analyzes the health of all population groups and the prevalence of various diseases and conditions.

What is the code for allergic dermatitis and how does the international classification of diseases describe this disease?

Allergic dermatitis according to the international classification ICD-10 has code L23. The disease is very common among all ages and population groups. Pregnant women are very vulnerable to allergic dermatitis.

What causes the disease?

This disease occurs after our body comes into contact with a pathogen or irritant. Doctors say the main cause of pathology is a person’s excessive susceptibility to a particular pathogen.

Even if the allergen affects only a certain area of ​​the skin, the disease can manifest itself throughout the entire skin. Typically, excessive susceptibility develops to a single pathogen or to a group of similar substances.

Doctors consider the onset of the disease to be the moment the patient’s body comes into contact with the irritant. Whatever the manifestation of the disease - a rash all over the body or only in small areas, treatment should be started immediately, especially for children and pregnant women.

Treatment can take place at home, but you should not self-medicate, because the doctor must monitor the entire process and record the results.

If the allergy is accompanied by swelling of the respiratory tract up to suffocation, then in this case the patient is referred for therapy under the supervision of specialists.

Allergic dermatitis can be caused by both external and internal irritants. Even a minimal amount of a pathological substance can cause a very strong reaction, since the human immune system cannot always detect, recognize and respond to small doses of pathogens.

The reaction to the stimulus can last from several days to several weeks.

Therapy will be most successful if pathogens are identified early, since the longer doctors look for the irritant, the more harm it causes to our body.

In addition, after some time the patient may no longer remember what could have served as a catalyst for the disease.

Before starting therapy, the doctor must find the reason why the disease developed and eliminate the pathogen.

Types of pathologies

Experts identify several forms of allergic dermatitis:

• Contact dermatitis is the body's response to an external pathogen. The disease begins after the skin comes into contact with a strong irritant. Contact dermatitis can be identified by a local reaction to the pathogen - redness, rash, blisters at the site of contact. Contact dermatitis will be completely cured when the patient eliminates the pathogen. To speed up the process, the doctor may prescribe drying ointments. With repeated interaction with the pathogen, contact dermatitis appears again;
• Atopic. This form of allergic dermatitis combines chronic skin lesions with respiratory diseases. It can be found in both children and adults. It is distinguished by a wet rash, symmetrical outlines of the rash. Immediately after eliminating the allergen, the pathology disappears, often without any need for any medication. In some cases, the doctor prescribes ointments containing zinc;
• The toxic-allergic form (toxidermia) develops if the irritant enters the respiratory tract, stomach, intestines, or by injection. The reaction spreads quite widely, occupies a large area, and manifests itself almost instantly in the form of itching, burning, and papules. It may also be manifested by fever and general weakness. Treat the rash with zinc ointments;
• Fixed erythema is manifested locally by local inflammation. This is a reaction to sulfonamide drugs, which is considered a form of toxicoderma. The spots have a clear shape and purple color. In this case, ointments alone are not enough; traces of sulfonamide substances should be removed from the body.

Treatment of allergic dermatitis, whether contact, atopic dermatitis, erythema or toxicdermia, begins with eliminating the cause that caused this pathology.

Drug treatment is also used, which depends on the manifestation of the disease.