Poison ivy oil can spread quickly and easily (just like poison oak does). Poison ivy rash can spread from clothes, skin ...

Poison ivy, poison oak, and poison sumac are three plants notorious for causing itchy, uncomfortable rashes that can turn a pleasant outdoor experience into a nightmare. These plants contain ...

Poison oak rash is an allergic reaction to the leaves ... depending on the time of year. Like poison ivy and poison sumac, poison oak releases an oil called urushiol when it sustains damage.

An curved arrow pointing right. Only 10% to 20% of Americans aren't allergic to poison ivy's rash-inducing oil, urushiol. Rising atmospheric carbon dioxide levels are causing poison ivy leaves to ...

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.