A member asked:
Will patch testing diagnose allergy to something you ingest or is it only useful for testing for contact dermatitis?
5 doctors weighed in across 3 answers
Usually: It usually will just evaluate things that come in contact with skin. Nickel and latex allergy can cross react with certain foods.
Answered 6/18/2013
5.1k views
Possibly both: Patch testing is very useful for identifying a contact allergy on the skin. It may be helpful for identifying foods with eosinophilic esophagitis. With foods, it is more controversial . Discuss this with your physician.
Answered 12/9/2016
5.1k views
It may: Patch testing for allergic contact dermatitis is well established. Patch testing for foods is still considered experimental, but there are suggestions that it correlates better with some cases of atopic dermatitis (allergic eczema) and eosinophilic esophagitis. In short, it may be helpful in your case.
Answered 12/12/2013
5.1k views
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