People contract a poison ivy rash when their skin comes into contact with urushiol, an oily resin present in the leaves, stems and roots of the ominously named plant. The substance is absorbed ...

How long will the rash last? The duration of the rash depends on whether you've had a rash before. If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer.

How long will the rash last? The duration of the rash depends on whether you've had a rash before. If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer.

How long will the rash last? The duration of the rash depends on whether you've had a rash before. If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer.

How long will the rash last? The duration of the rash depends on whether you've had a rash before. If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer.

How long will the rash last? The duration of the rash depends on whether you've had a rash before. If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer.

How long will the rash last? The duration of the rash depends on whether you've had a rash before. If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer.

Poison ivy, oak and sumac all can create itchy rashes from urushiol. ... In the spring, poison oak's leaves appear shiny with reddish or green colors that can curl inward.

Just thinking about poison ivy can make you itch. Blistering rashes on your arms and ankles, oozing bumps between your fingers and eyelid-swelling exposures are all-too-familiar summer hazards.

How long will the rash last? The duration of the rash depends on whether you've had a rash before. If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer.

How long will the rash last? The duration of the rash depends on whether you've had a rash before. If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer.