A bunch of studies now show nasal spray use helps reduce the risk of getting and transmitting COVID-19. Why aren't we all using them?
Casale, Manual, et al., Could nasal irrigation and oral rinse reduce the risk for COVID-19 infection?, Int J. Immunopathol Pharmacol. 2020 Jan-Dec; 34:
2058738420941757:]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7436790/"We advocate the inclusion of [nasal rinses] as additional measures to the current public health measures, to prevent and control the transmission of any respiratory infectious disease, including COVID-19. . . . Until a vaccine becomes available, which is not expected for another 12–18 months from now if everything works well, we should implement quickly and effectively non-pharmaceutical interventions including nasal irrigation and oral rinse to reduce the burden of COVID-19."
There is new data that some nasal sprays are anti-viral (they block COVID-19 infections in the nose) and virucidal (they actually kill and/or deactivate the virus)--meaning they protect you from getting sick.
Ferrer, Gustavo, et al, A Nasal Spray Solution of Grapefruit Seed Extract plus Xylitol Displays Virucidal Activity Against SARS-Cov-2 In Vitro, BioRxiv (Nov. 25, 2020):
Bansal, Shruti, et al, Iota-Carrageenan and Xylitol Inhibit SARS-CoV-2 in Cell Culture, bioRxiv (Aug. 21, 2020):
There is a new study out of Columbia Univ. showing nasal sprays prevented COVID-19 infections in animals (which is how we initially test medical drugs and devices) exposed to the disease.
Proud, Pamela, et al, Prophylactic Intranasal Administration of a TLR2 Agonist Reduces Upper Respiratory Tract Viral Shedding in a SARS-CoV-2 Challenge Ferret Model,
There is a new study that one such spray, Xlear, helped lessen the severity of COVID-19 and shortened the time of sickness for people who were already sick and had co-morbidities.
Go, Camilla, et al, (November 03, 2020) Potential Role of Xylitol Plus Grapefruit Seed Extract Nasal Spray Solution in COVID-19: Case Series. Cureus 12(11): e11315. doi:10.7759/cureus.11315: https://www.cureus.com/articles/43909-potential-role-of-xylitol-plus-grapefruit-seed-extract-nasal-spray-solution-in-covid-19-case-series
And there is tons of data that nose sprays help fight other respiratory infections.
Nasal sprays like these have been sold in the US for over two decades and been used by millions of people around the world--without any adverse reports. That's a ton of safety data.
In fact, there is actually more safety data about these sprays (millions use safely) than there is for the vaccines now being given. And, there is more data for nose sprays than there was when CDC told us all to wear masks.
To be really clear, I will get vaccinated when I can and I wear a mask, and I'm home for the holidays because CDC said to stay in.We all should wear a mask, social distance, etc. Get vaccinated. But until you can . . . I also think we all should use nose sprays in addition. I do.
Also, given the contraindications (who shouldn't get vaccinated now), and the supply issues, and the people who will refuse to get vaccinated, we may not hit the 70-75 percent "vaccinated rate" Faucci and others say is needed to stop the pandemic. We will be dealing with this for some time.
So, until we are out of the woods.... nose sprays add one more layer of protection to keep you and your family safe.
Along those lines a bunch of doctors and nurses are petitioning CDC to issue commonsense guidance calling on Americans to use nasal sprays and for doctors to add them to how they treat COVID-19 patients (and others who support them).