A member asked:

How long can a rash or another allergic reaction from food usually last?

5 doctors weighed in across 2 answers

Days: Usually not more than a week.

Answered 7/10/2020

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Depends on the food: Allergic reactions are present as long as the allergen that triggers it is also present. For food, it depends on how much was eaten and if it is eliminated from the body.

Answered 9/22/2016

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