I do the 7% each morning. I had MAC about 10 years ago and did the 3 anti biotics 18 months. Pulmonologist then did not explain the airway clearance. Now been diagnosed with bronchiechtosis and on top of that Abcessus. Been doing 7% neb clearance and still monitoring things before committing to antibiotics. I believe airway clearance is best way to start. Least sisruptive. And at least with abcessus some resolve just with that.