Poison Ivy and Poison Oak
Poison Ivy, Poison Oak, and Sumac
Poison ivy, poison oak, and poison sumac all produce an oil called urushiol. Most people have some sensitivity to urushiol. Within several days after being in contact with any of these plants, a red, itchy rash consisting of small bumps and blisters can appear on the skin.
The plant you’re exposed to will likely relate to the geographical area where you live or have visited. Poison ivy grows as a vine in the East, Midwest, and South. It grows as a shrub in far Northern and Western United States, Canada, and around the Great Lakes. Poison oak grows as a shrub in the East, or as a vine or a shrub in the West. Poison sumac is found in standing water in peat bogs in the Northeast and Midwest and in swampy areas in parts of the Southeast.
A rash from poison ivy, oak, or sumac should clear on its own within two to three weeks. However, it can cause significant itching and discomfort. If the rash is severe, has extensive blistering, or is around the eyes, mouth or genital area, you should seek treatment at Concentra Urgent Care. The staff, clinicians, and doctors at our facilities will be happy to answer your questions and provide the care you need to find relief.
