12/30/2025
Azelastine for the win!
This just one study, but when I weigh the risk vs benefit of using azelastine to prevent catching a cold, the flu, or COVID, it's worth it for me! More studies are needed to confirm these results, but we are seeing A LOT of coughs, colds, some flu and, yes, some COVID.
"The spray also appeared to help against other respiratory viruses. Rhinovirus, which often causes colds, was the most common non-COVID infection detected.
Only 1.8% of azelastine users tested positive for rhinovirus compared to 6.3% of placebo users, translating to about a 71% lower risk of infection.
Overall, 8.4% of azelastine users had at least one laboratory-confirmed respiratory infection during the study, compared to 18.8% of placebo users."
Researchers say people using a common allergy nasal spray, azelastine, were 69% less likely to contract COVID-19. Participants in the trial were additionally 71% less likely to catch the common cold than placebo users.