Almost all participants had been vaccinated against COVID-19. They were randomly assigned to receive either azelastine (0.1%) nasal spray or placebo. They used the spray three times a day for 56 days.

A blocked, stuffy nose and clogged sinuses are no fun. Try these home remedies to clear congestion, improve sinus drainage, and start breathing better.

A trial found the allergy spray azelastine lowered COVID-19 infection risk. Users tested positive less often and later than those on placebo. Experts say larger studies are needed to confirm the ...

(WGN Radio) – An over-the-counter nasal spray for allergies could actually protect you from catching COVID, a recent randomized trial found. Using a nasal antihistamine that contains azelastine three ...

Medically reviewed by Sukaina Hasnie, MD Key Takeaways Nasal sprays can help treat congestion and other symptoms from ...

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 ...

Respiratory viruses that have diverse strains and mutate rapidly, such as influenza and COVID-19, are difficult to block ...

Respiratory viruses that have diverse strains and mutate rapidly, such as influenza and COVID-19, are difficult to block ...

The expanded recall comes as health officials say they are "on guard" for what they recently called a "more serious flu ...