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Food Allergies and Atopic Dermatitis

Topic Overview

Some children with moderate to severe atopic dermatitis also have some type of food allergy . Although the link between food allergies and atopic dermatitis is not fully understood, some children with atopic dermatitis are thought to have a food allergy that triggers rash and itching.

A few common foods are responsible for most allergic reactions. In adults, shellfish, fish, tree nuts (such as walnuts or almonds), and peanuts cause 90% of the allergic reactions. In children, foods high in protein cause 90% of the allergic reactions. These include peanuts, milk, wheat, soy, fish, and eggs.

With the help of a doctor, you can find out whether certain foods are linked to your or your child's symptoms by trying an elimination diet. But there is little evidence that dietary restrictions improve symptoms of atopic dermatitis.

An elimination diet consists of the following steps:

  • Eliminate one food at a time from the diet, observing and recording any changes in symptoms over the next days or weeks.
  • Reintroduce the suspected food to the diet. Foods that you are allergic to will cause an allergic reaction within a few hours. But foods will not make atopic dermatitis symptoms show up within hours.

Related Information

Credits

By Healthwise Staff
Primary Medical Reviewer Adam Husney, MD - Family Medicine
Specialist Medical Reviewer Amy McMichael, MD - Dermatology
Last Revised April 17, 2012

Last Revised: April 17, 2012

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