Congratulations, you have a virus.
Congratulations, you have hidradenitis suppurativa. If the thing keeps growing, it will open and drain, most likely leaving a scar. Oh, and you may think it hurts now...but if it keeps growing it will really hurt...
...thanks, doc. So I'm on decongestants to battle the virual symptoms, he put me on a second antibiotic to try and stop this strange growing thingy, and a sack full of anesthetic cough drops that don't seem to be working as well as I remember.
Somehow, I got into the on-campus apartments next year, very good news for me :)