Evidence supporting the use of: Alum
For the health condition: Sore Throat

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Alum (potassium aluminum sulfate) has a long history of traditional use for sore throat, particularly in South Asian and Middle Eastern folk medicine. It is commonly used as a local application—such as a gargle or lozenge—due to its astringent and mild antiseptic properties. The astringent effect is thought to constrict tissues and reduce inflammation and discomfort in the throat. Historical texts and ethnobotanical surveys document the widespread use of alum for minor throat complaints, supporting its traditional reputation.

However, scientific validation for these uses is limited. There are a few small studies and in vitro reports suggesting that alum may have antimicrobial activity against some pathogens and could help reduce mucosal swelling. Despite this, current clinical evidence is insufficient: there are no large, high-quality randomized controlled trials confirming the efficacy or safety of alum for sore throat treatment. Health authorities do not officially endorse its use for this indication, and concerns exist about potential mucosal irritation and toxicity if overused.

In summary, while alum is traditionally used for sore throat and there is some plausible mechanism of action, robust scientific evidence is lacking. Its use remains primarily supported by historical and cultural practice rather than by modern clinical research.

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Products containing Alum

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