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A member asked:
How much time would it take for an allergic reaction to happen?
A doctor has provided 1 answer
Timing/allergic rxn: An allergic reaction due to an ingestion ( food, medications ) can occur within minutes up to approximately 6 hrs. Reactions to skin contacts ( poison Ivy, chemicals, etc) can occur 24-96 hours after exposure.
Answered 5/16/2015
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