Itchy vaginal entrance

Well for about a week it seems, I have had an itch. It's like the vaginal entrance region and the exit region of my buttocks. Nothing's red or rashy looking, I haven't done anybody diseased, and have minimized my wearing of thong underwear. I thought maybe it was a reaction to soap or shaving cream, so I haven't soaped or shaving creamed the area in awhile and no improvement. Nothing funky is coming out of my vag. I had athlete's foot on my feet awhile back, but it was long gone before this started and how would it get from feet to the area anyways... and like I said, no redness/rash. SO. What is wrong down there? Or are there any creams that are safe to use in this region? It's very annoying.