Synopsis

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

White Peony (Paeonia lactiflora) has a long history of use in Traditional Chinese Medicine (TCM), where it is known as "Bai Shao." Traditionally, it is used to nourish the blood, calm the liver, and alleviate pain from various causes. While White Peony is not specifically highlighted in classical texts as a primary remedy for canker sores (aphthous ulcers), it is sometimes included in herbal formulas aimed at addressing oral ulcers and mouth sores, usually in combination with other herbs. The rationale is often based on its reputed ability to reduce "heat" and inflammation, harmonize the digestive system, and support tissue healing. However, direct scientific evidence for White Peony’s effectiveness against canker sores is lacking. While the plant does contain bioactive compounds such as paeoniflorin with anti-inflammatory properties, no clinical trials or robust preclinical studies specifically demonstrate its efficacy for canker sores. Thus, its use for this condition is justified primarily by tradition and the generalized anti-inflammatory and healing actions ascribed to the herb in TCM, rather than by modern clinical research.

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