Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Lesser speargrass (scientific name: Aristida adscensionis) has been used in some traditional medicine systems for the treatment of mouth ulcers, including canker sores. Ethnobotanical records from regions such as India and parts of Africa note its use, where the herb is applied topically or used as a mouth rinse for its purported healing and anti-inflammatory properties. However, the supporting evidence for its effectiveness is primarily anecdotal and based on historical or cultural practices rather than rigorous scientific study.

There is a significant lack of modern clinical trials or laboratory studies that specifically validate the efficacy of Lesser speargrass against canker sores. The available literature on its phytochemistry suggests it contains compounds that may have mild antimicrobial or anti-inflammatory effects, but these have not been directly linked to the healing of oral ulcers in controlled studies. Therefore, while its use is justified by tradition, the quality and amount of evidence supporting its use for canker sores is weak. Health professionals generally do not recommend it due to the absence of robust scientific data and concerns regarding safety and standardization of herbal preparations.

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