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Poison Ivy, Oak, or Sumac: Other Plants That Cause a Rash
Some plants contain the same oil (urushiol) found in poison ivy, oak, or sumac, or they contain a substance that is similar enough to urushiol to cause a similar rash. Contact with these plants can make you allergic to urushiol so that future contact with poison ivy, oak, or sumac will cause a rash, even if you never had previous contact with poison ivy, oak, or sumac. These plants include:
- The ginkgo tree.
- The Japanese lacquer tree.
- Mangoes (the allergenic oil is in the fruit's rind and leaves).
- Cashews (the allergenic oil is in the shell).
- The Indian marking nut tree.
- Tropical silk oaks (sometimes grown as ornamental houseplants).
|Primary Medical Reviewer||William H. Blahd, Jr., MD, FACEP - Emergency Medicine|
|Specialist Medical Reviewer||H. Michael O'Connor, MD - Emergency Medicine|
|Last Revised||August 30, 2011|
|By:||Healthwise Staff||Last Revised: August 30, 2011|
|Medical Review:||William H. Blahd, Jr., MD, FACEP - Emergency Medicine|
H. Michael O'Connor, MD - Emergency Medicine
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