The health problems you describe have obviously been an absolutely dreadful experience and you have our sympathy for having had so much suffering.
Your history raises several questions. With the combination of severe upper (sinuses) and lower (pneumonia) respiratory infection have you been thoroughly tested for a variety of immunodeficiency states, including serum IgA deficiency? If not, you should be tested. Did the physician who did the FESS request thorough cultures of the abscess noted at surgery and was the tissue removed from your sinuses subjected to careful pathology exam to exclude an underlying disease such as granulomatous disease of the sinuses?
In that same vein, have you had comprehensive genetic testing, and not just a sweat test, for CF?
That your sputum never stays clear and assuming the phlegm originates in your lungs and not just your sinuses, suggests that there may be some type of structural lung damage/disease and/or an impairment of mucociliary clearance. Have you had a CT Scan of your lungs and bronchoscopy?
We suggest that you seek consultation with both an experienced pulmonary specialist and with an infectious disease specialist. The questions of atypical infection, immunodeficiency, and/or an underlying auto-immune disease state that predisposed you to these serial upper and lower respiratory infections, must be answered, if you are to get well.
Good luck
Sorry to read of your problems. I think you would benefit from being tested for Cystic Fibrosis. My son has had multiple sinus infections, 3 surgeries and he is only 22. He is going in for a sweat chloride test this week. There have been previous discussions on this site re;CF. My son is also being tested for an immune deficiency. Even though his total IGg levels were normal, a blood test was ordered - Humoral Panel- that looked at his antibody levels. A few were low and he was immunized with pneumovax. Hib and DT. Then his bloodwork will be retested in about 4-6 weeks to see if he amde antibodies. Hope this helps a bit. Good luck.
Addendum:
This last time I was in the hospital for ? pneumonia, right lower lobe including "bronchiectasis" was the final diagnosis. Sent home from IV-Zitromax to PO.
Infection has gone but the phlegm battle and chest irritation from secretions has not!
Thnks,
Rbn