Most people have some level of sensitivity to poison ivy and similar toxic plants, such as poison oak and poison sumac. ... Rashes caused by poison ivy and its cousins generally aren't serious, but they certainly can be bothersome...
Unfortunately, few people recognize their poison ivy exposure or are aware enough to wash off the urushiol within 10 minutes to prevent a reaction...who are immune to poison ivy, many of these children who are exposed to poison ivy will eventually develop a rash...
