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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
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
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Show 2 more comments
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.
Answered 5/14/2014
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