When skin touches poison ivy, poison oak or poison sumac plants, the oils from the plant can cause a rash. This rash can be very uncomfortable, itchy and unsightly. The medical name for this rash is ...

Poison sumac is a type of plant that can cause an allergic skin reaction, such as a rash. There are a variety of over-the-counter (OTC) treatments available for relieving symptoms. Poison sumac, ...

Medically reviewed by Keri Peterson, MD Key Takeaways Poison ivy, poison oak, and poison sumac have oils that cause itchy ...

Poison ivy has three leaves, and the middle leaf has a longer stem. Touching poison ivy causes an allergic reaction due to urushiol oil. Poison oak and poison sumac are related to poison ivy and also ...

You don't exactly have to have spent a lifetime in nature to know the old adage: Leaves of three, let it be. But that doesn't keep some people from a rash encounter with poison ivy, poison oak or ...

Many common plants can cause hives or other allergic reactions. These plants usually have distinct features that you can use to avoid them. Share on Pinterest Poison ivy vines like this one are one of ...

Poison ivy, along with poison oak and poison sumac, has an oily coating called urushiol, which often causes redness, swelling, and severe itching within 4 to 48 hours after contact with your skin.

When skin touches poison ivy, poison oak or poison sumac plants, the oils from the plant can cause a rash. This rash can be very uncomfortable, itchy and unsightly. The medical name for this rash is ...