Main functions: It has the effect of clearing swelling and relieving pain, relaxing tendons and activating collaterals, stopping bleeding and generating muscle, promoting blood circulation and removing blood stasis. Used for bruising muscles and bones, old and new bruises, trauma bleeding, rheumatism and pain. Pain in the back and legs, numbness in the limbs. Through the meridian, can improve the symptoms of hemiplegia, limb numbness, poor movement and other symptoms. Good at Tongli twelve meridians, is the effect of dispelling wind, qi, dehumidification and pain.