Touching the plant triggers a rash that usually isn't ... you can try gently rubbing over-the-counter calamine lotion on your skin. Calamine lotion creates a cooling sensation as it evaporates ...

It often appears in a streaky pattern, since many people unknowingly brush up against the plant. To treat a poison oak rash, use a steroid cream, calamine lotion, or antihistamine. Poison oak is a ...