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.

The population of the invasive species is down in the state, but some places like Dedham are still seeing high concentrations ...

Poison ivy annoys with its notorious skin rash. And common milkweed may be prolific once its pods open, but it’s a native species that hosts butterfly larvae. Plant by plant, it can help to ...

PERRYSBURG — The future of healthcare in Northwest Ohio received a major booster shot with the opening of Owens Community ...

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 rash is an area of skin that may be inflamed ... Some causes of blistering rashes may heal on their own, such as sun exposure and poison ivy. However, blistering rashes may indicate conditions ...

Rhus Dermatitis (Poison Ivy, Oak, and Sumac) Rhus dermatitis is a type of contact dermatitis. This itchy rash is caused by contact with an oily chemical called urushiol found in poison ivy, oak, and ...

Poison ivy contains a mixture of organic compounds called urushiol. This compound has an irritating and allergenic effect when it comes into contact with human skin. It causes a rash that itches and ...

With allergic dermatitis, a rash appears one to two days after you've been exposed to the allergen, like poison ivy. Contact dermatitis can look like red bumps and may eventually form moist blisters.