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.

Contact with anything that touched the poison ivy, oak or sumac can cause a rash within 12 to 72 hours. These include pets, ...

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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 ...

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.

A: Neither cats nor dogs suffer from poison ivy rash, but their coats easily transfer the oil in poison ivy, poison oak and poison sumac to humans. This oil, called urushiol, causes the common ...

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 ...