Azelastine, a common nasal spray for allergies, reduced the risk of COVID-19 and colds in one small trial. Larger studies are ...
Interferon-α nasal spray was safe and effective in reducing COVID-19 risk by 40% in patients with cancer, demonstrating its potential as an additional preventive strategy alongside vaccines and ...
Some claim it reduces snoring and enhances sleep, but there's no scientific backing. Experts warn it could worsen disorders like sleep apnea or even cause suffocation.
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