Synopsis

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

Luo San (also known as Lo San or 洛散) is a traditional Chinese medicine formulation historically used for oral ulcers, including canker sores (aphthous ulcers). The use of Luo San for this condition is rooted in traditional medical practice rather than modern scientific validation. In traditional Chinese medicine (TCM), canker sores are considered to be associated with "heat" or "fire" in the body, particularly in the heart and spleen meridians. Luo San typically contains ingredients such as gypsum, calcined alum, and borax, which are believed in TCM theory to "clear heat" and promote healing of mouth ulcers.

Despite its long-standing use in TCM, there is a lack of robust clinical trials or high-quality scientific studies specifically validating Luo San’s efficacy for canker sores in the biomedical literature. Some Chinese-language case reports and small case series may describe its use, but these do not meet the standards of modern scientific research. Overall, Luo San continues to be used based on traditional knowledge, empirical experience, and practitioner preference rather than confirmed scientific evidence.

In summary, Luo San’s use for canker sores is primarily justified by tradition, and while it may be effective anecdotally, there is currently insufficient scientific evidence to recommend it as a standard treatment in evidence-based medicine.

More about Luo San
More about Canker Sores

Other ingredients used for Canker Sores

Other health conditions supported by Luo San

Products containing Luo San