Nature's Way Burdock Root - Used for centuries, both topically and internally as a natural blood purifier, wound healer and organ detoxicant, Burdock Root has many places in the modern-day medicine cabinet. Known and used to relieve swelling around joints by promoting kidney function, thus increasing the flow of urine, its diuretic properties provide many other health benefits. Burdock Root in large amounts may stimulate the uterus, thus it should be used with caution during pregnancy. Apply as a poultice for relief from sores, bug-bites and other common skin ailments.