A member asked:

When after contact does it take for poison ivy rash to appear?

A doctor has provided 1 answer
Dr. Lily Hwang answered

Specializes in Pediatric Allergy and Asthma

Few hours to weeks: Poison ivy causes contact dermatitis after contact from the urushiol oil from the poison ivy. Symtpoms can ccur from a few hours up to 3 weeks after initial contact.

Answered 6/14/2018

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