Synopsis

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

The use of the blackboard tree (Alstonia scholaris) to support or treat canker sores (aphthous ulcers) is primarily based on traditional medicine. In various parts of Asia, especially in Ayurveda and traditional Chinese medicine, extracts from the bark and leaves of Alstonia scholaris have been used for their purported anti-inflammatory, antimicrobial, and wound-healing properties. Folk remedies often recommend the application of its bark powder or decoction to oral ulcers or inflamed areas in the mouth, with the intention of reducing pain and promoting healing.

However, scientific studies specifically evaluating the efficacy of Alstonia scholaris for canker sores are limited. Laboratory studies have demonstrated that extracts from this plant possess some antibacterial and anti-inflammatory effects, but these findings are mostly in vitro or in animal models and are not specific to canker sores. There is a lack of robust clinical trials or systematic studies directly assessing its effectiveness for aphthous ulcers in humans.

Therefore, while the use of blackboard tree for canker sores is justified by traditional practices and anecdotal reports, scientific validation is minimal. People using this remedy should exercise caution and consult healthcare professionals, as some compounds in Alstonia scholaris may have potential toxicity or adverse effects.

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