Nasal Spray

Are nasal sprays a better way to administer COVID-19 vaccines? Experts seem to think so

An article published by Gavi the Vaccine Alliance noted advantages of nasal sprays that include the fact that they don't need refrigeration or need to be administered by health professionals.

Small study develops non-toxic nasal spray prevents COVID-19 infection in ferrets

A doctor or pharmacist could mix the powder with sugar and water to produce a nasal spray.