Poison ivy - oak - sumac rash

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Poison ivy on the knee

Poison ivy on the leg

Poison oak rash on the arm

Rash

• Extreme itching
• Red, streaky, patchy rash where the plant touched the skin
• Red bumps, which may form large, weeping blisters

The reaction can vary from mild to severe. In rare cases, the person is admitted to a hospital. The worst symptoms are often seen during days 4 to 7. The rash may last for 1 to 3 weeks.

Review Date: 05/18/2011
Reviewed By: A.D.A.M. Editorial Team: David Zieve, MD, MHA, and David R. Eltz. Previously reviewed by Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine (11/1/2009).

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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