Your medicine cabinet could be packing more than just cold and flu relief.

A groundbreaking new study found that a widely available over-the-counter nasal spray may help healthy adults fend off COVID-19.

The news comes amid a late-summer surge driving up cases across the country — including in New York City. 3

The spray in question? Azelastine — an antihistamine that’s been safely used in the US since the 1990s to treat allergies. It’s sold OTC in the 0.15% concentration as Astepro Allergy .

Recent research suggests it might do more than ease sniffles. A study from last year found azelastine could reduce the viral load in COVID-19 patients, helping slow the progression of infection.

Curious about whether the nasal spray could also act as a preexposure prophylaxis — that i

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