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.

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 Arkansas tree cutter who made jars of the lethal poison ricin on his rural property was sentenced to eight years in prison for possessing a biological agent infamously known for being one of ...

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 ...

Itchy skin, or pruritus, can result from conditions like eczema or dermatitis. Less commonly, it can stem from conditions such as kidney failure and liver disease. Some causes of itching affect ...

LOLtron hopes you're ready for another thrilling comic preview, this time for Poison Ivy #31, hitting stores on Wednesday. THE SHADOW OVER MARSHVIEW! The strange and startling secrets of Marshview ...

Medically reviewed by Susan Bard, MD An itchy rash with blisters can be caused by an allergic reaction; an autoimmune ...

Poison ivy (Toxicodendron radicans) is a vine that contains an oily resin known as urushiol. According to the Centers for ...

Sometimes itchiness comes with redness, rashes, bumps, or cracked skin ... at risk of exposure to poisonous plants, such as poison ivy, oak, and poison sumac. When in contact with skin, the ...