I had/have chronic sinus issues and had excessive drainage. My CT’s looked like MAC (cultures neg) and I developed mild bronchiectasis. My Penn doc thinks the 2 possible causes for the bronchiectasis are the sinus drainage or that I had MAC and cleared it without treatment.
Currently I’m using a Mayo mixed triple spray with mometazone, Ipratropium and diphenhydramine. Similar meds are available, but this tastes better and is just one bottle.
I also use the NeilMed bottle with saline and mometazone 1-2x/day. This regime has really helped me. I periodically try to stop the Mometazone in the nasal rinse (with doc ok), but if I’m outside much, the symptoms really increase and I need it.
Note: say Kaaaa when using sinus bottle. It keeps it from ears, a problem for me until they taught me that.