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Poison Oak Rash - Poison Oak Rash Picture

Poison Ivy Pictures

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Updated October 27, 2010

A picture of a classic poison oak rash, a blistering rash that you can get after having contact with poison oak.
A poison oak rash can be confused with the rash caused by poison ivy or poison sumac.

A poison oak rash can be confused with the rash caused by poison ivy or poison sumac, unless you know which of these plants are growing in your area.

CDC

This poison oak rash is similar to the rash caused by poison ivy and poison sumac.

A classic case of poison oak might include a child with a known exposure to poison oak after a camping trip, hike in the woods, or day at the lake, who then develops a red, itchy rash all over his body a few days later.

Like poison ivy and poison sumac, poison oak is a member of the Rhus or Toxicodendron genus of plants. Unlike poison ivy, which is usually found growing as a vine or shrub east of the Rocky Mountains along trails, ponds, and lakes, poison oak usually grows as a bush or climbing vine in the western United States.

Urushiol is the chemical in all of these plants that causes the typical allergic reaction and symptoms of a poison oak rash.

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