A rash from poison ivy, poison oak or poison sumac is caused by an oil found in these plants called urushiol. When this oil touches your skin, it often causes an itchy, blistering rash. Most people ...

The medical term for this condition is black-spot poison-ivy dermatitis. It takes time for the rash to appear. A rash can develop in a few hours if you’ve had a rash from one of these plants before.

The poison ivy contains an oily resin or sap in all parts of the plant that can cause an allergic reaction in most people ...

Poison ivy is a plant that can cause an itchy rash when touched. Poison ivy, poison oak, and poison sumac all contain urushiol (yoo-ROO-shee-ol), a sticky, colorless, odorless oil. Urushiol is not ...

Poison ivy oil can spread quickly and easily (just like poison oak does). Poison ivy rash can spread from clothes, skin ...

But did you know that the plants poison ivy, poison oak, and poison sumac all contain the same rash-causing substance? It's called urushiol (pronounced: yoo-ROO-shee-ol), a colorless, odorless oil ...

Learn how to identify poison ivy, oak, and sumac plants and the rashes they cause. Your child was playing outside (yes!) but ...

Skin redness, rash, irritation. Poison ivy, toxic material allergy ... Character An evil sinister poison ivy villain plotting an evil scheme while tapping his fingers together in a conniving gesture ...