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.

If you have a red rash on your hands, arms, or legs that's accompanied by intense itching, you may have had a brush with poison ivy. Here’s what to do if you think you’ve been exposed to the ...

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 ...

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

Leaves of three — let them be! You've probably heard that little rhyme about poison ivy, the plant that can cause an itchy rash. But do you know why? It's because of urushiol (say: yoo-ROO-shee-ol), a ...

In severe cases, a doctor may prescribe oral corticosteroids, such as prednisone, to treat poison ivy rash. These medications may provide rapid and steady relief from symptoms. Poison ivy rash can ...

Poison ivy, poison oak, and poison sumac are three plants notorious for causing itchy, uncomfortable rashes that can turn a pleasant outdoor experience into a nightmare. These plants contain ...

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 ...