Evidence supporting the use of: Sodium chloride
For the health condition: Sore Throat

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Sodium chloride, commonly used as a saline solution for gargling, is a well-established remedy for sore throats. The practice of using saltwater gargles has both a long tradition and scientific support. Several clinical studies and reviews suggest that saline gargles can help alleviate sore throat symptoms by drawing out excess fluid from inflamed tissues via osmosis, which may reduce swelling and discomfort. Additionally, saline can help loosen mucus and flush out irritants or pathogens from the throat, potentially reducing the microbial load and promoting healing.

For example, the Centers for Disease Control and Prevention (CDC) lists saltwater gargles as a recommended supportive care measure for sore throats caused by viral infections. A randomized controlled trial published in the American Journal of Preventive Medicine (2005) showed that regular gargling with water or saline reduced the incidence of upper respiratory tract infections among healthy individuals. While the evidence for direct antimicrobial effects is limited, the symptomatic relief provided by saline gargles is well-accepted in clinical practice.

Overall, while sodium chloride does not treat the underlying cause of a sore throat (such as viral or bacterial infection), its use as a supportive, symptomatic measure is justified by moderate scientific evidence and is widely endorsed by health authorities.

More about Sodium chloride
More about Sore Throat

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