It might help if you have an infection in your nasal pathways to prevent that infection from spreading to other body parts.
Yes, but only if you do it early enough. By the time you are PCR positive I would assume it is already too late.
Yes. Maybe it still manages to reduce the amount of COVID-19 in the nose (and that’s what the standard PCR tests measure) and thus would produce a false result.
It might help if you have an infection in your nasal pathways to prevent that infection from spreading to other body parts.
Yes, but only if you do it early enough. By the time you are PCR positive I would assume it is already too late.
Yes. Maybe it still manages to reduce the amount of COVID-19 in the nose (and that’s what the standard PCR tests measure) and thus would produce a false result.