In addition to showing a marked reduction in coronavirus infections, the azelastine group also displayed fewer symptomatic ...

A common nasal spray may lower the risk of getting Covid-19, a new study shows. Dr. Leana Wen discusses what this all means as coronavirus cases rise.

The over-the-counter antihistamine azelastine works against a range of respiratory infections, including the flu and RSV, ...

An over-the-counter nasal spray for allergies could actually protect you from catching COVID, a recent randomized trial found ...