Patch testing: Toxicodendron dermatitis is poison ivy, for those who don't know. A patch test can be applied to the back to determine if you are allergic to the toxicodendron plant oil, but usually it isn't necessary; the diagnosis is made by visual examination by a dermatologist.
Answered 9/28/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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