Dermatitis

Dermatitis includes several inflammatory skin conditions that can cause itching, redness, dryness, and irritation. An accurate diagnosis is essential to identify the cause and choose the most appropriate treatment.

Dermatitis is a group of inflammatory skin diseases characterized by symptoms that can vary in intensity and duration. Although many forms present similar symptoms, such as redness, itching, and scaling, the causes can be very diverse: genetic predisposition, allergies, contact with irritants or allergens, alterations in the skin barrier, and environmental factors.

Recognizing the type of dermatitis is the first step to establishing effective treatment and preventing flare-ups. A specialist evaluation allows you to distinguish the different forms and identify any causative allergens.

What are dermatitis?

Dermatitis refers to a skin inflammation that can be acute or chronic. Symptoms can affect any part of the body and appear in both children and adults.

The most common symptoms include:

  • redness of the skin;
  • itching;
  • dry skin;
  • flaking;
  • small vesicles;
  • scabs;
  • thickening of the skin in chronic forms.

Dermatitis can compromise the quality of life, especially when the itching is intense or the lesions affect particularly exposed areas such as the face, hands and neck.

Una donna si tocca la scapola, mostrando segni di mal di schiena in una stanza luminosa.

The main forms of dermatitis

There are different types of dermatitis, each with specific characteristics.

Atopic dermatitis

Atopic dermatitis is a chronic inflammatory disease characterized by dry skin, intense itching, and eczema. It can appear in the first months of life or manifest in adulthood and is frequently associated with other allergic conditions, such as bronchial asthma and allergic rhinitis.

The disease is linked to a genetic predisposition and an alteration of the skin barrier, which makes the skin more vulnerable to external agents. Stress, seasonal changes, and certain environmental factors can promote flare-ups.

Allergic contact dermatitis

Allergic contact dermatitis occurs when the skin comes into contact with substances to which the immune system has developed a sensitivity.

Among the most common allergens we find:

  • nickel;
  • perfumes;
  • preservatives;
  • lattice;
  • colorants;
  • rubbers and resins;
  • cosmetics;
  • hair dyes.

Lesions generally appear at the site of contact with the allergen and cause itching, redness, blisters, and scaling. Allergic contact dermatitis is one of the main occupational dermatoses and frequently affects those who work with sensitizing chemicals or materials.

Irritant contact dermatitis

Unlike the allergic form, irritant dermatitis is caused by repeated contact with irritants that directly damage the skin barrier, such as harsh detergents, solvents, or disinfectants. It doesn't involve an allergic mechanism but can cause very similar symptoms.

Barche a remi dipinte con colori vivaci su un molo blu brillante al tramonto su acque calme

Diagnosis of dermatitis

Since many types of dermatitis present similar symptoms, it is essential to identify the cause of the skin inflammation.



During the specialist visit the following are evaluated:

  • patient's medical history;
  • location of the lesions;
  • progression of symptoms;
  • exposure to possible allergens;
  • work activity;
  • use of cosmetics, detergents and drugs.


When allergic contact dermatitis is suspected, your doctor may order patch tests to identify the substance causing the reaction. In some cases, further allergy or dermatological testing may also be helpful.

Treatment of dermatitis

Treatment varies depending on the type of dermatitis, the extent of the lesions, and the severity of the symptoms.



Therapy may include:

  • emollient and moisturizing creams;
  • topical anti-inflammatory drugs;
  • corticosteroids when indicated;
  • local immunomodulators;
  • antihistamines to control itching;
  • elimination of contact with the allergen in allergic forms.


In more extensive or resistant forms, systemic or other specific therapies may be considered, always after a careful specialist evaluation. Proper treatment can control symptoms, reduce relapses, and improve quality of life.

Margherite bianche che sbocciano in un prato soleggiato sotto un cielo azzurro tenue

Frequently Asked Questions

FAQ

Do you have specific questions about your situation? Contact the firm for a consultation.

  • What is the difference between atopic dermatitis and allergic contact dermatitis?

    Atopic dermatitis is a chronic inflammatory disease linked to genetic predisposition and impaired skin barrier function. Allergic contact dermatitis, on the other hand, is caused by contact with a substance to which the immune system has become sensitized.

  • How do you recognize allergic dermatitis?

    It generally manifests with redness, itching, blisters, and scaling in the area that has come into contact with the allergen. The diagnosis is confirmed by a specialist examination and, if necessary, patch testing.

  • Is dermatitis contagious?

    No. Dermatitis is not contagious and cannot be transmitted from one person to another.

  • Which substances most commonly cause contact dermatitis?

    Common allergens include nickel, perfumes, cosmetics, latex, dyes, resins, preservatives, and some workplace chemicals.

Studio in Monza · Via Maggiolini 9/A

Dermatitis.

If you'd like to clarify the origin of your symptoms or receive a specialist evaluation, Dr. Stefania Milani is available to guide you through a personalized diagnostic and therapeutic process.