I'm 17, i've never had sex, or sexual contact of any kind other than kissing. I have a red bump, that is large, but not huge. It's alot bigger than a pea. It's red, and the skin around it is also reder than the rest of me. It's tender to the touch. There is no white spot on it. It doesnt look like a pimple. It's the first time anything like this has happened. What causes it? How do i get rid of it? Will it go away on it's own?