I'm glad you posted about the nebulizing alone while on watch and wait, and your MAC cleared. I'm hoping the same will happen to me. I was on antibiotics for 3 weeks in May and went to NJH during this time and my NJH Dr. suggested I go off antibiotics and do "watchful wait" due to my low MABs count. My May and June cultures were negative. Still waiting on my July 27th culture which I sent in. So, I'm hoping that's negative as well. Definitely need more studies in regard to nebulizing with 7% saline for those with BE and NTM infections.