I'm a 17 year old girl, 5'0, around 110 pounds. I have a cyst of the skin on my right breast. I've been to my doctor, who prescribed me medication (Augmentin), but the lump just got bigger, more painful and red. After a sonogram, she told me to continue with the antibiotics and I'm scheduled to see her in two weeks. If the cyst persists, I'm told I have to get it removed. However, recently, the skin on and around it started to peel, and I think I may have broken the skin because it started to bleed, and what looked like pus and an pily substance came out as well. Most of it has stopped, although I put a bandage on it if it continues. Should I be worried or is this sommething that just happens?