have you tried using a neti pot and/or lots of steam? like tent your head over a big bowl of steaming water. adding aromatics like lavender or eucalyptus makes it nicer.
bronchitis is mostly caused by a virus and just takes a long time to clear up. it could take a couple months. annoying as hell, yeah, but antibiotics are not needed.
As I ate the oysters with their strong taste of the sea and their faint metallic taste that the cold white wine washed away, leaving only the sea taste and the succulent texture, and as I drank their cold liquid from each shell and washed it down with the crisp taste of the wine, I lost the empty feeling and began to be happy and to make plans.
– Ernest Hemingway