Also, the reliance on RATs might have missed some asymptomatic COVID infections. And even using a placebo spray may have had some protective effects by rinsing and coating the nasal lining.

MODEL RELEASED. Young woman blowing nose on tissue. How rapid is the onset of effective action when using azelastine HCl 0.15% to relieve nasal symptoms of seasonal allergic rhinitis? Azelastine HCl 0 ...

Every winter, I prepare for my clinic schedule to fill up with patients experiencing runny noses, coughs, and fevers caused by viruses, such as rhinoviruses, influenza, and COVID-19. I also prepare ...

Researchers say people using a common allergy nasal spray, azelastine, were 69% less likely to contract COVID-19. Participants in the trial were also 71% less likely to catch the common cold than ...