question: Yes, I have had a cough and congestion in my bronchial area. The phlegm is thick and green in color. I ve had this condition off and on for the last several months treating it with Mucinex D and NiteQuil feeling it was getting better until the last few weeks. I was treated about one year ago for severe sinusitis and acute bronchitis with a regiment of prednisone and antibiotics (Levaquin & Amox-Clav). I feel the sinus issues were resolved but the bronchitis was never totally eliminated. My question, is there something more serious going on or is this being mistreated? I don t smoke and 73 years old, taking meds for hypertension and cholesterol.