@charlie999 , Hello Charlie. I was diagnosed in 2005 with MAC and bronchiectasis. I opted to not go the route of the three strong antibiotic regimen due to worrieksonvile. s of harming my liver. I have been on an ongoing treatment over the last 5 yrs of using one a month. I take the antibiotic for 10 days each month and the antibiotics are alternated each month as to not build up a resistance to them. The two antibiotics used were doxycycline and ciprofloxacin. I did those two for three yrs. until I caught a. psudomonas. Then, the doxycycline was swithed to tobramycin. So far so good. I have not coughed in years, whereas, I used to cough non-stop and violently. The doctor that put me on this regimen is at the Mayo Clinic in JAX.