@westcottkm3040 Thank you for your response. This is good to hear. As I said below, I am at the ready should coughing return. "MAC tends to grow if not managed." is a concerning statement. The nurse practitioner answer when asked, 'what happens if it's not treated?'..."it can get worse". So this is indeed a consideration. I would like to ask you as you are now in your third round of meds and dealing with this, did you wait when you were first diagnosed to begin treatment, or did you diagnosis take a long time before you received or began treatment?