Hello, I have chronic bronchitis from the age of 12. It comes from my left lung, for many years I used only antibiotic as I usually get lung infection easily. In the last 2 weeks I felt again sick and used 10 days of cefuroxime and another 3 days of Azithromycin which I completed yesterday. I still feel very weak and also the mucus is still there. (Usually I feel better after such large use of antibiotic) I would like your advice of how to proceed, I feel very weak and can't breath as well as usual. Thank you so much.