Climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contact
The leaves of jewelweed (Impatiens spp.), which often grows near poison ivy, may neutralize the poison-ivy allergen if rubbed on the skin right after contact.
She didn't bring any calamine lotion because she had never broken out with poison ivy before.
I've been around poison ivy before and I didn't break out.