Ahhh righty then.
Have you told your mum about it??? sounds abit stoopid but its what I sometimes do if i kinda try and avoid the Dr's.
If not, then the only option I can suggest is just grit your teeth and bare it! GP's - male and female have seen it all so they wouldnt be at all embarassed or owt. If you dont want to go on your own - take someone close to you, a close best friend, your mum.
Hope that helps abit more
EDIT: The lump you might have as I said before might be an ingrowing hair root.
When I use to get these from shaving the area (which i dont anymore for this reason) I use to warm castor oil, apply it to a cotton pleat, put on the area and let it take out the inflammation, until it eventually (this might sound gross) but popped.
If you can get your mits on any of that and try it, it may work. If not the GP trip will still be on the cards.