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

How to identify poison ivy, poison oak and poison sumac. What you should know to prevent a rash.

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 to identify poison ivy, poison oak and poison sumac. What you should know to prevent a rash.

How to identify poison ivy, poison oak and poison sumac. What you should know to prevent a rash.

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 to identify poison ivy, poison oak and poison sumac. What you should know to prevent a rash.

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.

Immediately wash the part of your skin that touched the plant with one of the following: Rubbing alcohol, Poison ivy, oak, ...