Poison oak is similar in appearance to poison ivy but is usually found as a shrub rather than a vine. It can have clusters of three, five, or seven leaves, which resemble oak leaves—hence the name.

Poison oak rash is an allergic reaction to the leaves or stems of the western poison oak plant (Toxicodendron diversilobum). Home remedies and medical treatments can help manage symptoms.

The effects range from a small itch to large-scale rashes. Interestingly, some people appear to be immune to the effects of poison oak. The cluster of three oak-like leaves are a hint you may be near ...

Poison oak has leaves that grow in groups of three, have wavy edges, and fuzzy undersides. A poison oak rash is usually pink or red and will usually appear within 24 hours. You can treat poison ...

How can you tell if you're dealing with poison oak or poison ivy? Both of these plants contain urushiol -- an oily compound ...

A poison oak rash looks like red, swollen bumps that may blister over. It often appears in a streaky pattern, since many people unknowingly brush up against the plant. To treat a poison oak rash ...