Airway clearance never worked for me. I tried it for over a year and could never get anything up. I even went to the outpatient lab and they tried different techniques to help but nothing worked. The Arikayce helps but after the procedure that is when shortness of breath happens. I have an appointment with my new Dr next week as we have moved and had to get all new Drs. Thanks for your reply I have been reading your replies for almost 2 yrs.