@pacathy Thanks for the response. Im going to wait it out and do the CT scan . These biopsies were really hard on me. The first one completely missed the Mac and because my doctor was so adamant the it was cancer he failed to investigate further. The second biopsy indicated MAC with 4 mm cavitary that was also missed by CT scan three months prior . None of the doctors seem to understand the importance of airway clearance in my case nor are they concerned about reinfection . Im just getting pounded hard with antibiotics orally , inhaled and now they want me on a picc line. Thanks for responding and tolerating my venting .