The Connection Between Atopic Dermatitis and Allergies
Eczema, also known as atopic dermatitis, is a chronic inflammatory skin condition that commonly begins in infancy or early childhoor. Many children with eczema also have allergies, asthma or both. This progression is often referred to as the “allergic march.”
Children with eczema are more likely to later develop:
Environmental allergies
Seasonal allergies
Food allergies
Asthma
While eczema itself is not always caused directly by allergies, allergic triggers can often worsen skin inflammation and flare-ups.
How Environmental Allergens Affect Eczema
Environmental allergens are one of the most common contributors to eczema flare-ups in children.
Common environmental triggers include:
Dust mites
Pollen
Mold
Pet dander
Smoke and indoor irritants
Children with eczema often have a weakened skin barrier, which allows irritants and allergens to penetrate the skin more easily. This can activate the immune system and increase inflammation, itching, and irritation.
For many children, environmental allergies may contribute to:
Persistent itching
Poor sleep due to nighttime scratching
Seasonal eczema worsening
Increased skin sensitivity
More frequent flare-ups
This is why children with difficult-to-control eczema may benefit from allergy evaluation and environmental allergen testing.
The Role of Food Allergies in Eczema
Food allergies and eczema can sometimes be connected, particularly in infants and young children with moderate to severe eczema.
Researchers believe that children with eczema may be at increased risk of developing food allergies because of a weakened skin barrier that can allow allergens to interact with the immune system through the skin early in life. However, the relationship between eczema and food allergies is complex and continues to be actively studied.
While there is clear overlap between the two conditions in some children, not all eczema is caused by food allergies, and experts are still working to fully understand how these conditions influence one another.
Common food allergens associated with eczema may include:
Egg
Milk
Peanut
Wheat
Soy
However, it is important to understand:
Not all eczema is caused by food allergies
Poorly controlled Eczema can skew both skin and blood allergy testing results leading to false positives. Positive allergy tests do not always mean a food is causing symptoms
Unnecessary food elimination can sometimes lead to nutritional concerns
For this reason, food allergy testing should always be interpreted carefully alongside a child’s history and symptoms.
Why Proper Evaluation Matters
Because eczema is a complex condition that can have many contributing factors, treatment often requires a combination approach.
Management may include:
Skin barrier repair and moisturization
Trigger avoidance
Environmental allergy management
Medication guidance
Food allergy evaluation when appropriate
Education on bathing and skin care routines
At Allergy for Kids, we take a personalized approach to evaluating eczema and allergy-related skin concerns. Our goal is to help identify possible triggers while creating realistic treatment strategies that improve comfort, reduce flare-ups, and support healthier skin.
We understand how frustrating eczema can be for both children and parents, and we are committed to partnering with families every step of the way.
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865-546-3998
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