1/2 tsp J&J Baby shampoo in nasal spray is another documented method
https://youtu.be/ct5GI4I535U
https://onlinelibrary.wiley.com/doi/10.1002/jmv.26514
https://youtu.be/tVZLqXaE7-8
Used Alkalol since an ENT recommended the spray. Used to have numerous sinus infections https://www.amazon.com/Alkalol-Natural-Soothing-Solvent-Cleaner/dp/B003YFG0M0