Hi, I am a 27 year old female, and my last sexual experience was nearly nine months ago. I noticed a small, hard node/pimple-like bump on my labia majora; near my vaginal opening a few days ago. Since then, it had gotten bigger and it is slightly inflamed; hard to the touch; and red. It has a white centre. I m currently unable to see a doctor, and would be glad for some thoughts on what it might be and if there was anything I ought to do until I can go see a doctor (in about three weeks time)? Thanks!