Yarrow is used for fever, common cold, hay fever, absence of menstruation, dysentery, diarrhea, loss of appetite, gastrointestinal (GI) tract discomfort, and to induce sweating. Some people chew the fresh leaves to relieve toothache. Yarrow is applied to the skin to stop bleeding from hemorrhoids, for wounds and for cramp-like conditions in women. In combination with other herbs, yarrow is used for bloating, intestinal gas (flatulence), mild gastrointestinal (GI) cramping, and other GI complaints. In foods, the young leaves and flowers of yarrow are used in salads. In manufacturing, yarrow is also used as a cosmetic cleanser. Yarrow oil is used in shampoos.