Keep trying: Overall, I can't think of any rash that would be transmitted by the brief casual contact you desribe. 1% hydrocortisone product may help if this is dermatitis, generally use 3-4 times a day. If this doesn't help you might try a lotromin or a similar product over the counter designed to treat fungal infections for several days. Failing both of these you might see a primary MD or dermatologist.
Answered 10/5/2015
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A doctor has provided 1 answer
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