An everyday hay fever spray may do more than tame sneezes. In a rigorously run German trial, adults who used azelastine nasal spray three times a day were less likely to catch COVID-19 than those who ...
The active ingredient in a common over-the-counter allergy spray may do more than ease hay fever symptoms. A new clinical trial found azelastine cut COVID-19 infections by 70%, hinting at a cheap, ...
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