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Home > Medical Reference > Encyclopedia (English)

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Poison ivy - oak - sumac rash - Symptom

Symptoms:

  • A red rash and extreme itching.
  • The rash erupts in streaks or patches where the plant touched the skin.
  • The rash includes red bumps and may also form large, weeping blisters.
  • The reaction can vary from mild to severe. Hospitalization is sometimes required.

The rash usually appears within a couple of days after contact with the plant's oils. The worst stage is often from days 4 to 7. The rash may last for 1 to 3 weeks.

  • Reviewed last on: 2/27/2008
  • Stephen C. Acosta, MD, Department of Emergency Medicine, Portland VA Medical Center, Portland, OR. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Auerbach PS. Wilderness Medicine. 4th Ed. St. Louis, MO: Mosby:2001;194-195.

Marx JA, Hockberger RS, Walls RM, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 5th Ed. St. Louis, MO: Mosby; 2002:1647-1648,2200.

Habif, TP. Clinical Dermatology. 4th Ed. St. Louis, MO: Mosby;2004:25,85-89,402.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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