A member asked:

I've had a rash on the right hand by the base of the thumb since nov. when it first broke out. using tacrolimus .1. is it due 2 allergy or internal?

A doctor has provided 1 answer

Rash on thumb: Rash in this location is most likely a contact dermatitis - whether allergic or irritant. If the rash was bilateral and symmetrical i would be more inclined to think of something internal.

Answered 7/30/2015

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