I m a diabetic and on a lot of medications....humalog, victoza, metformin, lisinopril, atovastation, gabapentin, citilopram, buproprion.... and having ongoing issues with water blister type pustuals on scalp and on and in between my fingers on both hands, and they itch?? where is this coming from?? do I have some sort of vitamin deficiency or is it coming from one of these meds?