Understanding Poison Ivy Oil and Its Effects Poison ivy, poison oak, and poison sumac all produce urushiol, a sticky, l ...

Dealing with poison ivy, oak, or sumac exposure can be uncomfortable and frustrating. These plants contain urushiol oil, ...

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.

Constantly scratching and picking at an itchy rash really does make it worse. But why? According to newly released research ...

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 ...

presented with a rash on his face. The child had been playing in the yard a day earlier and had contact with some "weeds" which the child's father identified as poison ivy. That evening his mother ...

The poison ivy contains an oily resin or sap in all parts of the plant that can cause an allergic reaction in most people ...

Scratching an itchy rash worsens inflammation by triggering pain-sensing neurons and activating mast cells, creating a ...

As more people venture outside to enjoy warm weather, knowing how to identify and avoid poison oak could help to avoid a future of headaches and itchy red rashes ... with poison ivy, but the ...

Allergic contact dermatitis happens due to an allergic reaction to a particular substance, such as poison ivy or nickel ... while the second exposure causes the rash. View the slideshow below ...

Q. What causes rashes? A. The most common cause of a rash is contact dermatitis, an inflammation of the skin that comes from direct contact with irritants or allergens. A red, itchy rash from ...

usually an itchy rash. A mild reaction might last 5 to 12 days. A more serious reaction can last 30 days or even longer. Most people don't come into contact with poison ivy, oak, or sumac on purpose.