Poison ivy, oak, and sumac
are not the only plants that can cause rashes.
Some plants contain urushiol, the same oil found in poison ivy, oak, and sumac. Or they may contain a substance that is enough like to urushiol to cause a similar rash. Contact with these plants can make you allergic to urushiol. As a result, you will get a rash upon contact with poison ivy, oak, or sumac, even if you never had contact with it before. These plants include:
Irritant plants may cause a rash where they come into contact with the skin. Unlike with poison ivy, oak, or sumac, you do not have to be allergic to the plant to develop a rash. Irritant plants include:
Certain plants have a chemical that sunlight converts into an allergen. Some people who touch these plants and then go into the sun have an immune system reaction similar to a poison ivy, oak, or sumac rash (allergic contact dermatitis). The rash only develops in areas exposed to sunlight. These plants include:
ByHealthwise StaffPrimary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency MedicineAnne C. Poinier, MD - Internal MedicineSpecialist Medical ReviewerH. Michael O'Connor, MD - Emergency MedicineMartin J. Gabica, MD - Family Medicine
Current as ofOctober 13, 2016
Current as of: October 13, 2016
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
& Anne C. Poinier, MD - Internal Medicine & H. Michael O'Connor, MD - Emergency Medicine & Martin J. Gabica, MD - Family Medicine
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