Green clay can be used for healing bruises and relieving pain in children and grown-ups: rheumatism, sustained effort, long walks (soothes sore feet), tendinitis, back pain...
Pain Relief, Anti-Inflammatory Action, and Swelling Reduction. Helpful For tendinitis.
Clay wrap around entire area if possible, 1/4 – 1/2 inch thick, covered, for 20 minutes to an hour initially, increased to overnight applications as tolerance permits, for three days to three weeks.
Are there any studies on green clay cataplasms' effectiveness to treat tendinitis?
I am aware of the existence of question Does eating clay have any beneficial effect?, but I'm interested in the external use of green clay, not internal.