“While this specific mnemonic device exists to deter people from touching poison ivy, it turns out there are also many ...

Poison ivy has leaves in groups of three, a green or reddish tint, and a hairy vine. A poison ivy rash looks like small, red bumps that can sometimes progress into blisters. To avoid poison ivy ...

When you’re spending time outdoors this summer, in your own yard or hiking in a park, it’s useful to know to spot poison ivy.

Urushiol is the oily substance in the leaves, stems, and roots of the poison ivy plant. Approximately 90% of people are allergic to this substance and develop a rash upon contact. So, if someone ...