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Poison Oak Blisters

Whether It's Poison Ivy, Poison Oak or Poison Sumac, the Blisters Still Hurt

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Updated August 11, 2010

arm with a blistering poison oak rash
Image courtesy CDC
Poison oak is a relative of poison ivy and causes very similar blisters. Treatment is the same for both, but the plants look completely different.

Identifying poison ivy, poison oak and poison sumac

More about poison ivy, poison oak and poison sumac

Any opinions expressed here are for educational purposes only and are not intended for diagnosis.

If you have your own rash picture you'd like to share, submit your rash picture here.

Want to talk about rashes? Ask others and see more rashes on the First Aid Forum.

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