This is being trialled.
I have actually used this to stave off a threatening cold.
And decades ago in the fever hospital salty water was given as 'sniffs' Not a good name for it as sniffing is not what you do. There is a technique in how you manage to get it to wash down through the nostrils and down the back of the nose into the mouth to be spat out.
Has anyone else tried this for the common cold? BTW if you do try it don't make the water much more salty than blood saltiness.
Searching for recipe in Supercook magazine
Parents-in-Law. What do/did you call them?
Can I use my bus pass on London buses?
Angela Rayner lashes out and calls Sunak “pint sized loser”.