Keratosis pilaris?: Probably the most common rash on the back of the upper arms. There's no perfect way to treat it. Some moisturizers with ammonium lactate can help soften and smooth. A prescription product like tretinoin (retin-a and others) can help smooth the areas.
Answered 11/2/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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