New study finds over-the-counter treatment could help prevent COVID

An over-the-counter nasal spray has been found to reduce rates of COVID-19 infections and common colds in a midstage trial. In the study conducted by German researchers and published in JAMA Internal Medicine, 450 volunteers used either an azelastine nasal spray, typically used to ease allergy symptoms, or a placebo spray three times a day for 56 days.

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