I want to echo what Sue said about trying too hard. She helped me immensely with that comment, which she has made before. I have had nodular MAC since 2014. When I developed additional health issues, I began nebulizing 7 percent twice a day and using the Monarch vest twice a day. My sputum production increased accordingly and I had hemoptysis. Based on what Sue said. I went back to 3 percent twice a day with very little sputum and only use the vest four times a week. I do not use a breath-actuated nebulizer—so I nebulize for 10 minutes (albuterol) and 15 minutes saline and then stop. That’s what was recommended by Mayo. That’s pretty much it, although I blow into the Aerobika 10 times, 2 or 3 rounds, sometime during the morning and evening, as I do other things. I also use the Neil Med rinse once or twice a day, which has helped a lot. Focus on easing up a little and see if it doesn’t decrease your sputum production. It did for me but of course we are all different.