First, I want to say I have acne, and have had it for years. I am 27 and still deal with it. The bump I am worried about could just be a really bad zit. There are actually 2 bumps I am curious about. The first one is gone, it was a small, hardish bump that never changed (Both are on my chest). I had it for a couple weeks. My boyfriend popped it and the most foul smelling, thick pus came out. Once that was gone it went away. The second bump was the size of a quarter until my bf tried to drain it. He was basically squeezing it and bloody pus came out. It is now a lot smaller and seems to be going away. It looks a lot like the huge cysts I would get when I was younger. What I am worrying about is infection. Both times my bf decided to pick at them he washed his hands and we used alcohol. He used a pin to pick at the big one and burned it and wiped it with alcohol. I do not feel sick or have a fever, so I do not believe I currently have an infection. I am leaving for the U.K. in two weeks and just need to know if I am ok to not go to the doctor. I hate sitting in a doctors office with a bunch of sick people if I do not need to.