A few weeks ago I got a pimple on my outer labia and at first I didn't think anything of it. It seemed just like a normal pimple because when I tried popping it, the size went down. But now it's back and it's a lot bigger, it's pink and kind of dark red around the edge. I'm a little worried about it. But I'm not sexually active, I'm a virgin. But what bothers me is that it came back bigger. Is it anything to worry about?