Now on top of my bladder symptoms, following a cystoscopy I flared up with vaginal itching and burning. It was probably a reaction to betadine that they put on me, but now I have chronic itching and burning. I know this happens with postmenopausal women, but I do use topical estrogen (Premarin) and it still happens. It comes and goes. My doctor thinks it could be an autoimmune illness but I don't seem to fit in any of the categories; there is no smell or consistent discharge, etc. Has anyone on here experienced this?