I am so grateful for this group & the input from all. I had "a virus " and tested negative in trip to ER in April 2023. Have had ugly productive cough since then. Tried all OTC remedies. Saw 3 specialists; allergy, ENT, Lung clinic , over this past yr. Have really had to work my own program & do my best to get thru it. The RX's from docs & doing nasal rinses have supported recovery but none actually stopped the phlegm / mucous production. Time has seemed to be my best friend. I am gradually improving. Dr Google has been beneficial in helping me understand the symptoms I've had.