I had stable mild bronchiectasis with no cough for years, just watched by regular pulmonologist. When I started having dry cough it my PCP pushed to evaluate (good on him!). Went thru trials of meds/ inhalers & gerd meds to no effect & ended up in bronchiectasis program at NYU Langone in NYC where I've now had chest therapy & have cultured positive for MAC. Am now having productive cough but only when I do airway clearance & occasionally at night. So I don't know if the change from dry to productive cough is from learning airway clearance or MAC progressing or both. Altho, the sputum is getting thicker with more tiny white bits vs just clear. I understand it's common to have dry cough w bronchiectasis at least at first. But my specialist team + chest therapist stressed even w mild symptoms, getting on the regular airway clearance to at least stay stable & they said sometimes there can be some reversal of the bronchiectasis (some people here have experienced that). Decisions about treating the MAC will be in coming weeks.