Functions: Dispelling wind and activating blood circulation, nourishing blood and calming liver, dredging collaterals and relieving pain. It is used for migraines, tension headaches, neurological headaches, cervical spondylosis-type headaches, and premenstrual headaches caused by exogenous wind evil, blood stasis blocking collaterals, blood deficiency and malnutrition, and hyperactivity of liver yang.