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rash on buttocks

I have had a rash on my left buttocks cheek for 4 months now.  Every dermatologist I see states it has to be herpes but the blood test always comes back megative..  I have no pain or tingling or sores. It's just a very ugly rash.  Please help  My husband does not want to touch me.  What is this???    It does seem to be affected by certain foods like bread or pizza.

This discussion is related to Recurring Skin Infections.
1 Responses
9090222 tn?1401649595
You might have some sort of a gluten allergy that only effects your bum?
Put some cetaphil on it (it's a lotion that pretty much takes care of all rashes). If that doesn't work as a derm for some cortisone cream which will clear it up.
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