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A common nasal spray may block Covid infection, trial results show
nbcnews.com/health/health-news/covid-infection-may-prevented-common-nasal-antihistamine-spray-trial-s-rcna228500
The over-the-counter antihistamine works against a range of respiratory infections, including Covid, flu and RSV, according to researchers.
This story appeared on nbcnews.com, 2025-09-02 15:30:43.