I've been coughing about 4 months now; my CT of the chest is WNL, only a small nodule seen, but, diagnosed as an old nodule. I smoked for years, but, quit a few years ago too; the reason I wanted the CT. No fever; phlegm is more like clear allergy type phlegm. No aches or pains. When I take an allergy pill, it does seem to help some, maybe. I take levothyroxine, 137mcg and Mobic 15mg. Mobic for the past 4 or so months. levothyroxine much longer. Feels like I have a tickle in my throat, and I have to try to force my cough to the front of my throat to be effective.