Hi, I Had A Breast Biopsy About 2 Months Ago.

Hi, I had a breast biopsy about 2 months ago. I am still having pain. I went back to the doctor and the site had to be drained twice. I told him that I had pain radiating to my armpit, but he said it had nothing to do with the biopsy. I think it does and now I am feeling a lump and soreness at the lower inside of that breast with soreness above my (sternum) bone. What could this be?