Skin rash covering lower leg. Poison sumac reaction resulting in itchy red welts and sores caused by chemical urushiol, found in poison oak and poison ivy as well. Slow camera pan.

Even though poison ivy is dying this time of the year - poison oak and poison sumac are year-round plants that can still cause skin rashes! If you come into contact with poison ivy, poison oak or poison sumac, chances are you are going to develop an itchy, painful skin rash. Find out why these reactions occur and what treatment options are best from board-certified allergist Leena Padhye, MD in our latest Ask the Allergist video in collaboration with American College of Allergy, Asthma and Immun