My drains were removed 2 weeks ago after a tummy tuck/lipo in the flanks procedure. In one of the areas where the drain was I have a scab that has not healed with the appearance of puss around it. I call my ps and they are putting me on Bactrim DS, does this sound like normal procedure and does it look alarming? Also there seems to be a small bump at the end. Thank you for your time.