Suggest Remedy For Itchy Ulcer In Vulva

Hi, may I answer your health queries right now ? Please type your query here...i have a wot looks like an ulcer on my vulva. It started itchin yesterday which sumtimes happens wen i have my period due 2 the pads i use. 2day the ulcer/sore is there n is very sore. I havent had any sexual contact in about 17 weeks wot can it b?