Related Experiment Video
Updated: May 11, 2026

A Mouse Ear Model for Allergic Contact Dermatitis Evaluation
Published on: March 24, 2023
[Atopic dermatitis and allergy]
1Service de pneumologie et allergologie pédiatriques, hôpital Necker-Enfants Malades, université Paris V - Descartes, 149, rue de Sèvres, 75015 Paris, France. chantal.karila@nck.aphp.fr
Insights
Identifying allergies is crucial for managing atopic dermatitis (AD). Early diagnosis of food allergies in infants and aeroallergen testing in older children can guide treatment, including immunotherapy, for better control of this common skin condition.
Area of Science:
- Dermatology
- Allergology
- Pediatrics
Context:
- Atopic dermatitis (AD) is a prevalent chronic inflammatory skin condition in childhood.
- It often represents the initial manifestation of the atopic march.
- Identifying triggers like food or respiratory allergies is essential for effective management.
Purpose:
- To explore the diagnostic challenges and therapeutic implications of food and aeroallergen allergies in atopic dermatitis.
- To differentiate between sensitization and clinical relevance of allergens in AD.
- To guide clinical practice in managing pediatric atopic dermatitis.
Summary:
- In infants, severe, early-onset AD unresponsive to topical corticosteroids and associated with immediate reactions may suggest food allergy, though allergen sensitization is common and clinical significance requires expert evaluation.
- For older children, aeroallergen exposure can exacerbate AD, making allergy testing valuable for selecting specific immunotherapy.
- Consulting an allergist is recommended to avoid unnecessary elimination diets and to confirm allergen involvement.
Impact:
- Improved diagnostic accuracy for allergy-related atopic dermatitis.
- Personalized treatment strategies, including immunotherapy, for better disease control.
- Reduced reliance on ineffective elimination diets, improving patient quality of life.
Abstract:
Atopic dermatitis (AD) is a very common chronic inflammatory skin disease in childhood, often the first step in the atopic march. It seems justified to look for a food or a respiratory allergy, being worsening or responsible for the AD. At infant age, some clinical features are consistent with a food allergy: a severe AD, with an early onset, uncontrolled by topical corticosteroids, and a history of immediate-type reactions. As sensitization to food allergens is very common (positive skin prick-test, atopy patch-test or specific IgE), the role of food allergens in worsening AD is difficult to affirm. So, it could be necessary to ask the advice of an allergist, to avoid unnecessary elimination diets. At older age, exposure to aeroallergens cans worsen AD. Looking for an aeroallergen allergy can help to choose the specific immunotherapy, which clinical efficacy on AD seems interesting.
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