I am 79 years old and last year I went through the same thing -- only, in so doing, I cracked 3 of my ribs and was unable to take my usual short walks for about 5 weeks -- it's hard to breathe and walk and function! I made an appointment with my pulmonary doctor when the coughing sent me to the ER with hemoptysis. He ordered and bronchoscopy and that revealed not only BE but also MAC.

I tried the big 3 and they were too much for me and so I became a patient at National Jewish Health in Denver. Since then, my coughing has subsided through ACTs (airway clearance techniques) only. I am on no drugs but will have a consultation with my NJH ID doctor next week as to where I go from here. My testing will be complete by then. I also have to 2 fungi growing in my lungs and I rather suspect that may be part of the treatment.

It's best to see a pulmonologist for clarification of the reason(s) for your coughing. Best Wishes!