Poison sumac is a type of plant that can cause an allergic skin reaction, such as a rash that may be itchy or swollen. Poison sumac is a woody shrub that grows up to 20 feet tall. Its branches have 7 ...
Skin contact with the oil of a poison sumac plant leads to an itchy, burning, allergic skin reaction. You can’t contract the rash from another person, but the plant’s oil can transfer from your ...