(NEXSTAR) – You may have managed to dodge the dreaded rashes often associated with poison ivy, poison oak or poison sumac, ...

According to the American Academy of Dermatology Association, you should do the following: Immediately wash the part of your ...

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

Poison ivy, oak and sumac all can create itchy rashes from urushiol. What you need to know before the rash starts. News Sports Entertainment Calendar Opinion Advertise Obituaries eNewspaper Legals ...

Oils in poison ivy and poison sumac plants can cause allergic reactions so severe they require medical treatment. Within 10 minutes, the urushiol oil from the plants can begin to affect exposed skin.

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

With poison ivy, oak and sumac, it's the oil, urushiol. When it contacts the skin, the oil causes a rash, Thorsgard says. And contact needn't be directly with the plant to pick up the oil.

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.