Evidence supporting the use of: Slippery elm bark
For the health condition: Lymph Nodes or Glands (swollen)

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Synopsis

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

Slippery elm bark (Ulmus rubra) has a long history of traditional use in North American herbal medicine, primarily for soothing sore throats, coughs, and digestive discomfort. Its mucilaginous (gel-like) properties are believed to coat and soothe irritated mucous membranes. However, the use of slippery elm bark specifically for supporting or treating swollen lymph nodes or glands is based more on traditional, anecdotal herbal practices than on robust scientific research. Historically, some Native American and early settler herbalists used slippery elm poultices or teas to reduce inflammation and provide symptomatic relief in a variety of ailments, sometimes including swollen glands or lymph nodes associated with sore throats or infections. The rationale was that by soothing the throat and reducing local irritation, overall inflammation in the region—including nearby lymph nodes—might also decrease. Despite these traditional uses, there is little to no scientific evidence directly supporting slippery elm’s efficacy for lymphatic or glandular swelling. Modern herbal texts may mention it as a supportive remedy, but its main evidence base is historical, not clinical. Therefore, while its use for this condition is rooted in tradition, current scientific validation is lacking, and the available evidence is weak (rated 1/5).

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