I got one of those last year. It was just a bump, but got painful because of where it was situated (right where the elastic band of my knickers were) and was rubbing, so it got bigger and red. It turned out it wasn't an ingrown hair (could have been, as it was "down below", just to the right, where you would shave), just a cyst. I got it removed under local, got two stiches (female doc and female nurse....yay! lol) and after two weeks, no more problems. I do have a small scar there now, but I can't see it as being a put off...if you see what I mean? lol A lot of people get them, don't be ashamed to see your doc about it.