It has been suggested to me by my doc that I may have the bronchitis type copd, but never officially put on paper, although I have been prescribed 2 inhalers. I have always coughed up brown flecks in my phlegm. But now, I have been coughing up dark grey after having some chronically infected teeth pulled. Could this be a result of the local anesthetic injections, or a worsening of the copd? I can only get rid of bronchitis for about a month before it comes back every time. Antibiotics (doxicycline) seem to have the inside of my mouth raw, with white patches on my tongue and a few white blisters in mouth, also. Now I'm on Penicillin for the teeth. I am on chantix, too. Quitting after 37 years.