Nasal spray defense against COVID
Betadine is the standard but availability is limited now
Iodine plus a viscous agent like carrageenan.
Povidone diluted with saline is a diy method but doesn’t provide the barrier that the carrageenan has.
I’ve used enovid/ Sanotize which is a nitric oxide nasal spray. I don’t think I have ever had COVID since but also avoid crowded indoor spaces with shared air, and mask frequently.
I think I have had COVID zero to three times. Never tested positive but have had symptoms . Best guess is once, March 2020, when Cynthia definitely had it.
posted by dave @ 8:42 AM
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