I've had a pimple on my forehead for 2-3 weeks and it still won't go away. I don't usually have acne because I'm only 13. It's a raised bump on my forehead about an inch above the space in between my eyes. It is painfull to the lightest touch and has a reddish coloration. I can't see any pus inside but it feels like it might have some. I haven't touched to squeezed or poked at it but I'm getting impatient. I've read it could be many different things so don't want to put anything on it to make it worse. What should I do?