Post complete hysterectomy / incidental colonoscopy. Last 7 months external burning/itching. 2 Office visits, various swabs - all neg. for yeast infection etc....Used 2 different prescribed Rx creams (external-Diflucan being one & other treatment for lichen )& .5mg Premarin cream internal - NO relief - just varying degrees of burning & itching. Thinking about requesting Nystatin cream???