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A member asked:
How do they do allergen tests for eczema?
A doctor has provided 1 answer
Eczema & Allergy: There are 2 types of dermatitis or eczema caused by allergy - contact dermatitis and atopic dermatitis. Contact dermatitis is like the rash you get with poison ivy and testing consists of a number of patches that are worn for 48 - 72 hours. Atopic dermatitis can be caused by food allergy and testing is done by skin prick with a drop of each suspected food and left on for 20 minutes.
Answered 3/26/2013
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