There's not any "alternative treatments" for MAC unless it the nebulizing Albuterol/Levalbuterol along with a Saline which many do along with the big 3. My upper left lung ended up growing a 10 cm cavity in it within 30 days while waiting to start the big 3. The damage MAC can do is worse than the treatments for many patients and honestly not worth taking the chance on not starting the big 3 since the damage is hard to reverse. Once I started the big 3, I not only felt better and symptoms improved but I began on the "staying stable" journey and the cavity shrunk to 4 cm eventually.