Synopsis

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

Castor oil, derived from the seeds of the Ricinus communis plant, has a long history of use in traditional medicine, particularly in folk and naturopathic practices. It is often applied topically as a “castor oil pack” to areas of the body with swollen lymph nodes or general lymphatic congestion. The rationale behind this traditional use stems from anecdotal reports and a belief that castor oil can promote lymphatic drainage, reduce inflammation, and enhance immune function, thereby helping to alleviate swelling of the lymph glands.

However, scientific validation for these effects is limited. A small number of preliminary studies, such as one published in Phytotherapy Research (1999), suggest that topical castor oil may increase lymphocyte count, but direct evidence supporting its efficacy specifically for swollen lymph glands is lacking. Most recommendations for this use are based on tradition and practitioner experience rather than robust clinical trials. Systematic reviews and major medical references do not endorse castor oil derivatives as a standard treatment for lymphatic issues. As such, while the use of castor oil for swollen lymph glands is rooted in tradition, the supporting evidence is weak and largely anecdotal.

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