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A member asked:

If you eat something you are allergic to, is it possible you could have a reaction days later?

3 doctors weighed in across 2 answers
Dr. Mark Berenson Md answered

Specializes in Family Medicine

Yes: Some reactions are immediate - like anaphylaxis. Although others are delayed. The delayed reaction is usually due to repeated exposure to the allergen, however.

Answered 8/3/2013

5k views

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Show 2 more comments
Dr. John Chiu answered

Unlikely: Most food reactions occur within 2 hours although red meat reaction (anaphylaxis) may occur up to 6 hours later and wheat possibly 24 hours later.

Dr Conovalciuc agreed

Answered 5/14/2014

5k views

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