<unk>  (also called Toxicodendron<unk>  and Rhus<unk>  is the medical name given to allergic rashes produced by oil<unk> , which is contained in various plants, including the plants of the genus Toxicodendron (including poison ivy, poison oak, and poison Sumac), as well as other plants in the family Anacardiaceae (mango, Rengas tree, Burmese lacquer tree, India marking nut tree, and the shell of the cashew nut), and even unrelated plants such as Ginkgo biloba.
Symptoms of the rash include itching, inflammation, oozing, and in severe cases a burning sensation. The American Academy of Dermatology estimates that there are up to 50 million cases of<unk><unk><unk>  annually in the United States alone, accounting for 10% of all lost-time injuries in the United States Forest Service. Poison oak is a significant problem in the rural western and southern U.S., while poison-ivy is most rampant in the eastern U.S.<unk>  from poison sumac is less common, but just as problematic.
Urushiol-induced contact dermatitis
Contact dermatitis
Pseudomonas dermatitis
Factitious dermatitis
Contact Dermatitis
Paederus dermatitis
Drug eruption
Toxic epidermal necrolysis