Thanks for the welcome and site information- really a mine of useful material!. I am doing a lot of things to avoid exposure and stay healthy and feel grateful the infection was discovered early. So helpful to hear that a lot of people are using 7% saline in their nebulizers. I could not get that prescribed even for an induced sputum and ended up needing a bronchoscopy - everyone around here seems to only use 3%, which is what I am using at present in my nebulizer and the docs seem scared that it will irritate the lungs too much, although 3% has little effect on me most days and I am always able to exercise afterwards. I am gathering up all the info that I can and will then circle back to the chest PT and pulmonologist to review .