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Does gargling with tap water help prevent colds?

Stacy Wiegman, PharmD
Pharmacy Specialist

Research has found that gargling with tap water may help prevent colds. In one study of nearly 400 healthy people, those who gargled with tap water three times a day had fewer colds during prime cold and flu season than did people who didn’t gargle. Even when a gargler caught a cold, he or she was less likely to develop bronchial problems than non-garglers.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.