Symptoms of Poison Ivy-How to Recognize Poison Ivy?
Wednesday, July 8th, 2009Symptoms of Poison Ivy Poison ivy is an allergic contact dermatitis, or skin rash, caused by exposure to urushiol, an oil found in the three-leaved poison ivy plant. Urushiol is so potent that it only takes a billionth of a gram to cause a reaction. Symptoms usually develop in 1 to ...
