Synopsis

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

Sumac (commonly referring to species in the Rhus genus, particularly Rhus coriaria) has a long history of use in traditional medicine, especially in the Middle East and Mediterranean regions. It has been used traditionally for a variety of ailments, including as a remedy for mouth and throat conditions such as canker sores (aphthous ulcers). The rationale for its use is mostly based on its astringent, antimicrobial, and anti-inflammatory properties, which are attributed to its high content of tannins, flavonoids, and organic acids.

However, scientific validation for the efficacy of sumac in treating canker sores is limited. A few laboratory studies have demonstrated that sumac extracts exhibit antimicrobial activity against oral pathogens and possess anti-inflammatory effects, but direct clinical studies on sumac’s effectiveness for canker sores are lacking. The evidence that does exist primarily comes from traditional and ethnobotanical literature, as well as anecdotal reports, rather than from rigorous clinical trials.

In summary, while the use of sumac for canker sores is rooted in traditional medicine and there is some plausible biochemical basis for its effects, high-quality scientific evidence supporting its efficacy for this specific condition is currently minimal.

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