Synopsis

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

Chinese Raisintree (Hovenia dulcis) has a history of use in traditional Chinese medicine for various ailments, but its application to canker sores (aphthous ulcers) is rooted primarily in folk and historical practices rather than modern scientific validation. Traditional Chinese Medicine (TCM) texts mention the use of Hovenia dulcis for “clearing heat” and “removing toxins,” which are believed to underlie conditions like mouth sores. Herbalists sometimes employ extracts from the seed or fruit to make decoctions or topical preparations aimed at reducing oral inflammation and discomfort associated with canker sores. However, evidence supporting its effectiveness is limited to anecdotal reports and traditional usage patterns.

Modern scientific studies on Hovenia dulcis focus mainly on its hepatoprotective, antioxidant, and anti-inflammatory properties, with scant research specifically targeting oral ulcers or canker sores. While these pharmacological actions suggest a theoretical benefit, there are no well-designed clinical trials or robust laboratory studies demonstrating efficacy for oral ulcers. As a result, its use for canker sores is justified primarily by tradition, and the evidence level is best regarded as low (2/5).

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