A patient recently came into our dermatology clinic with a rash and a story similar to many others. He had been camping with friends a few days earlier and helped carry some logs to stoke the fire.

A poison ivy rash is caused by exposure to urushiol oil found in poison ivy, poison oak, and poison sumac plants. The rash itself is not contagious from person to person. The rash can appear to spread ...

A poison ivy rash will last at least a week and likely more if you've never been exposed before. If you come into contact with poison ivy, the rash will typically appear within 12-48 hours. In order ...

Identifying poison ivy involves recognizing its appearance in different seasons, as its color and form change throughout the year. If you grew up in a rural area, you’ve probably heard the old adage, ...

You can identify poison ivy by its three glossy leaflets and color changes with the seasons. Wash your skin with soap and water right away if you touch poison ivy to stop the oil from spreading. You ...

Poison ivy is a plant that can cause severe inflammation of the skin, or contact dermatitis. The plant contains a sap that triggers delayed irritation if it comes into contact with the skin. Also ...

Poison ivy is a toxic plant that’s common in most of the continental United States. When it touches your skin, it can cause a rash known as contact dermatitis. This rash may develop into increased ...

Both shingles and poison ivy cause a painful, blistering rash. Poison ivy is an allergic reaction, while shingles is a viral infection. Shingles also causes additional symptoms that can differentiate ...

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 ...

Sure, it’s irritating. But this unpopular native plant also has underappreciated superpowers. Here’s how to deal with it. By Margaret Roach Pop quiz: What’s an ecologically important native flowering ...