109 simple saline/iodine nasal rinse found to reduce hospitalization of "COVID positive" patients eight fold (journals.sagepub.com) posted 2 years ago by merf 2 years ago by merf +109 / -0 42 comments share 42 comments share save hide report block hide replies
Just research it more. Anything in the sinus is really dangerous of not careful.
(Ie, cv19 test...)
I personally knew a guy who got an infection from water in the sinus and it ate his eye and part of his brain.