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Poison Ivy Definition
Common names:
  • Dermatitis Poison Ivy
  • Poison Ivy
  • Poison Oak
  • Poison Sumac
A person with poison ivy has an allergic skin reaction to oils that are formed by a plant. Images

Poison ivy usually causes a red, linear rash that may blister and causes severe itching. About 9 out of 10 people develop an allergic rash to poison ivy, oak or sumac.
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Last Updated: Jul 25, 2008  References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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