Desperate help I'm worried

Hi um me again 15 f I have not had sex once so ever I'd that matters I'm worried because I have this painful bump on the inside of my yk lips and I think I've had this before but idk if I should be worried I don't wanna tell my mom or show her because im not comfortable with doing that and i keep to myself most of the time I don't know what to do any advice (p.s I'm a diabetic and have had two yest infections/currently having one if that's important)

UPDATE: I had checked to see if it was an ingrown hair and it was slightly big and was draining pus and blood should i be worried or just leave it be? Though I will say since it drained a little bit it doesn't hurt as bad anymore I think