The British Herbal Compendium notes that preparations of yarrow lower fevers, induce sweating, stop cramps, encourage menstruation, relieve inflammation, and stimulate the release of stomach acid to digest proteins and fats. The herb is taken internally to treat colds, fevers, and indigestion, and used in skin treatments of slow-healing wounds. The Complete German Commission E Monographs recommends sitz baths with yarrow added to the bath water to relieve pelvic cramps in women.