I have had MAC for three years. Because of low weight, my doctors delayed treatment. Now, with only 37% lung capacity, and very short of breath, they have decided to treat me. I infused, via a PICC line, Amikacin for four months. Along with that, I am on Azithromycin, Ethambutol, and Rifampin (3xday) 7 days a week. I now have Pseudonomas as well. With that diagnosis, I am discontinuing my three antibiotics for two weeks. Instead, I am taking Levofloxocin for two weeks. I nebulize Iprapropium/albuterol followed by 7% saline. I also use a VibraLung. I do this twice daily. I have never been able to produce any sputum with any of this. What is postural draining? Could this possibly help me cough up some of this mucus coating my lungs? Thank you.