What I’m doing is that before sleeping I’m using a spray that is 1 part mometasone to 1 part xylometazoline. 1 spray in each nostril before sleep, angled towards the opposite eye (otherwise you get nosebleeds) and now I sleep very well.
This mixture doesn’t exist ready made, I had to buy it from pharmacies that could mix medicine (it cost 100$ for a small bottle in Canada… insurance was paying but yeah). In Europe, they let you buy the two ingredients OTC or with a prescription and they’re ver cheap (like 5 eur a bottle). I then open one of the sprays and mix it 1:1.
It has the potential for tolerance so I’m very careful to use it only at night or exceptionally during the day if it’s really bad. Sometimes I can get away with 3/4 of a spray instead of a full spray in each nostril.
Of course check with a doc, but not many seem to know about this recipe. I had to see many many before one came up with it.
I have persistent rhinitis since I was a kid. Only two things I've tried so far help:
Afrin, which of course you can't use often due to rebound congestion but it's nice to get the occasional break.
Secondly, holding my nose shut then blowing hard against it, as if to pop your ears. For some reason this clears my airways for about 20-30 seconds which is enough to at least blow my nose.
Steroids, surgery (tonsils + adenoids) and sinus irrigation have not fixed it, but antihistamines do help a little.
Besides my nasal passages, inflammation is also noted in my eyes and gums by opticians and dentists respectively.