Poison ivy
Just looking at a poison ivy rash may make you feel itchy, but it’s all in your head. Poison ivy cannot be transmitted to another person, even if you touch the rash or the fluid from a blister. Transmission can only happen if your skin comes in contact with the plant’s oil—called urushiol—which can happen either through direct contact with it or if it gets on your clothing or pets—and then you snuggle or pet them. Wondering if that rash is poison ivy? According to the Mayo Clinic, it will often present in a straight line, if you’ve brushed up against the plant. However, if it’s gotten onto your clothing or your beloved pup’s fur, the rash might be more haphazard and expansive.