If the sap from this plant comes in contact with your skin, a chemical called urushiol ... by leaving a piece of plywood or a dark tarp on it, poison ivy can be smothered and killed.

Poison ivy contains an oil called urushiol, which causes a red, itchy rash when it transfers to the skin. Every part of the plant contains this oil, from the roots to the stem to the leaves ...

Considering taking supplements to treat poison oak and poison ivy dermatitis? Below is a list of common natural remedies used to treat or reduce the symptoms of poison oak and poison ivy dermatitis.