A member asked:

Back in the fall i had poison ivy on my left arm. i now have a red rash the shape of the rash i had and it itches. can it come back? without exposure?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Urushiol: Without exposure to poison ivy you shouldn't get a new case of poison ivy dermatitis. But if there was any urushiol (sticky chemical that causes itching) left behind on clothing or surfaces that could still cause you reacte.

Answered 7/12/2017

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