I am new to the group, but have appreciated the input from everyone on various issues. I have had MAC for about two years. My main symptom is always being extremely short of breath. Because of my weight ( very low) my local pulmonologist has felt I am not a candidate for normal antibiotic treatment. The only thing I have been doing is using 3% saline along with an albuterol inhaler, and a flutter valve. Nothing makes me cough. I am unable to cough up anything. I recently had a televisit with a doctor from the University of North Carolina pulmonary clinic. She recommended I change to 7% saline and work on airway clearance. She recommended I try a VibraLung which uses sound waves to hopefully dislodge the bacteria in my lungs. I also have a hole in my lung. So, I do not know if I am a candidate for this. The VibraLung is very expensive (about $4,000), which is not covered by Medicare or insurance. It is also nonreturnable. Has anyone used a VibraLung? What were your experiences?