@laura34, yes, Laura, I always have the burning but mine is relatively mild. I always feel it and have always thought that's just the chronic inflammation part of the chronic lung disease. I took the big also about two years and my MAC has come and gone. Not sure what it's doing right now as I will have a CT scan and sputum test in June. I mentioned it to my infectious disease doctor once and she said they have been using Azithromycin for the inflammation but I didn't ask if it was a maintenance dose or just for a few months. My other guess is steroids but maybe someone else knows on this site. Nan