In the past month periodically I have been noticing a itching then burning sensation near the vaginal area, under the skin. I looked at it and noticed that when I would touch it and irrate it, it would swell up next to the "lips" of the vagina and burn. I have also noticed little bumps around the area. I don't know of they are realted. I don't think its an std because I have only been with one person for awhile... what could it be please help...