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 oak is similar in appearance to poison ivy but is usually found as a shrub rather than a vine. It can have clusters of three, five, or seven leaves, which resemble oak leaves—hence the name.

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 ...

More than likely, we’ve all had a scare once or twice involving poison ivy. If you are an outdoor enthusiast, being educated ...

If you develop black spots or streaks, there tends to be little or no redness and swelling. The medical term for this condition is black-spot poison-ivy dermatitis. It takes time for the rash to ...

Leaves of three, let them be! You've probably heard that little rhyme about poison ivy. But did you know that the plants poison ivy, poison oak, and poison sumac all contain the same rash-causing ...

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 ...

For example, poison ivy (Rhus toxicodendron) is a prominent and historic homeopathic remedy for certain kinds of joint pain associated with what might be called today fibromyositis or fibromyalgia.