I have mild bronchiectasis and have had little mucus since I got my post nasal drainage under control. I only do airway clearance daily since MAC cultures came back negative and I get nothing out. Mayo and my Penn doc are fine with daily. I’ve just made it part of morning routine when I read this site and emails. I know from CT’s that I have at least a bit in lungs and hope I’m moving it around enough to prevent further damage to my bronchial tubes.