I have a foul odor on the same side of my nose as the sinus lift after surgery. It has been a week, have have been in to see the surgeon that performed my surgery twice. He says may just be the antibiotics. It smells like something rotten. I have brown drainage, that taste awful, usually comes after I sniffle slightly as I am trying to avoid all the things that we are not supposed to do after this type of surgery, blow nose, sneeze, and so on. I can just do something so simple as lean forward to put on shoes and the smell can be sickening. It has only been 8 days after my surgery.... Should I be concerned?