Synopsis

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

Echinacea angustifolia has a history of traditional use for treating canker sores (aphthous ulcers), primarily among Native American tribes and in herbal medicine traditions. The rationale behind its use is based on Echinacea’s purported immunomodulatory and anti-inflammatory properties, which were believed to help the body fight infections and promote healing of mucosal tissues. Historical records indicate that various Echinacea species were used for treating mouth and throat sores, although specific documentation for canker sores is limited and sometimes generalized as "oral sores" or "mouth ulcers."

From a scientific standpoint, there is limited direct evidence supporting Echinacea angustifolia specifically for canker sores. Some small clinical studies and laboratory research suggest that Echinacea extracts (often from Echinacea purpurea, not Echinacea angustifolia) may have modest immune-enhancing and anti-inflammatory effects, but rigorous, well-controlled trials in the context of canker sore treatment are lacking. A few recent studies have explored Echinacea lozenges or mouthwashes for oral ulcers, with mixed results and generally low methodological quality. Therefore, while traditional use is established, scientific validation remains weak, and the evidence rating for its use in canker sores is low.

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