The Fluid in Poison Ivy Blisters Explained
← Pest & Insect Control | Bite Treatment & First Aid Quick answer It’s not contagious. The fluid is lymph, a clear body fluid. Urushiol oil causes the rash and blisters. Blisters form as your body reacts to the oil. They don’t spread the rash. Wash thoroughly after exposure. Seek medical help for severe reactions….