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Skin contact with poison sumac plant oil leads to an itchy, burning allergic skin reaction. Learn how to identify the plant and treat skin rashes.
These spots look like black lacquer spilled onto the skin. Instead of black spots, some people develop black streaks on their skin. 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.
A rash from poison ivy, oak, or sumac looks like patches or streaks of red, raised blisters. The rash doesn’t usually spread unless urushiol is still in contact with your skin.
Poison sumac (Toxicodendronvernix) contains a rash-inducing oil called urushiol. When this colorless, oily resin makes contact with skin, it can cause allergic contact dermatitis. Poison sumac rashes have red blotches of inflammation or clusters of blistery skin that itch.
Poison sumac, which is in the same family of plants as poison ivy and poison oak, can cause an itchy, red rash. Learn how to protect yourself.
Poison ivy is a common poisonous plant that causes an itchy skin rash. Other rash-inducing poisonous plants include poison oak and poison sumac. These plants produce an oily sap that contains urushiol (pronounced yer-OO-shee-all), which causes an irritating, itchy allergic reaction.
Poison ivy, oak, and sumac contain a substance called urushiol, which causes an itchy rash on people who touch it. See pictures and images, learn treatment, symptoms, and prevention, and learn to identify these poisonous plants.
When poison oak, ivy, and sumac are damaged, bruised, or burned, they release an oil called urushiol. If it gets on a peson’s skin, most people experience an allergic reaction that manifests as...
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 ivy, oak, and sumac: What does the rash look like? Most people develop a red, itchy rash with blisters, but the rash can show up in other ways. Pictures show you how this rash can appear on the skin.