My pulmonologist and ENT both told me to use a nose irrigator.
Caution: There have been cases of brain infections from using non-sterile water in a nose irrigator. Every MD I have who has a relationship to noses and lungs double checks every time to make sure I’m not using regular tap water in it. The directive is to use distilled or boiled water. I keep a glass jug near the kettle, and every time I make tea, I pour leftover boiled water in the jug. When it's cool, it can be used in the irrigator (I microwave it an exact number of seconds, not too hot, not too cold).
I believe the number of reported fatalities is now 4. HERE’s an article a few years’ old.
I also use Simply Saline whenever and love the feel of it. There’s also a eucalyptus version, that scours me out for a bit. I’m fearful of using Ayr, because it has so many ingredients. Odds are, I ‘d be allergic to or get irritated by at least one of them.
I’ ve found many companies sell a little packet of powder for use in irrigators. They must have different formulae, because I clearly like one over the others. In other words,you might have to try a few different ones to get one you like.