Developed bronchitis like cough, nasal congestion: can't stabilize

2 weeks ago I developed a bronchitis cough with nasal congestion. I have a sinus infection which I was started on levoquin for 10 days. I am bringing up copious amounts after nebulizing (Duoneb followed by 3% saline and then chest compression. Has anyone had similar issues. I feel so frustrated as nothing seems to be working to get me stabilized. It seems I continue with infections. Started Brinsupri about a month ago but seeing no improvement? Getting frustrated trying to at least be manageable. Thanks