Probably too late. But the virus lives for 3 days in nasal passages before moving to lungs: https://trialsitenews.com/finnish-biotech-secures-u-s-patent-for-iv

Probably too late. But the virus lives for 3 days in nasal passages before moving to lungs: https://trialsitenews.com/finnish-biotech-secures-u-s-patent-for-ivermectin-based-nasal-spray-to-take-on-covid-19-in-low-to-middle-income-countries-lmics/ https://trialsitenews.com/finnish-biotech-secures-u-s-patent...