Chuanxiong Ligusticum is a dried rhizome of the plant Chuanxiong, family Umbelliferae, commonly used to invigorate the blood and move Qi, dispel wind and relieve pain. Chuanxiong is pungent, warm and dry, and travels without being guarded, and is capable of dispersal, reaching the top of the head on its way up. It also enters the Blood Branch and can reach the Sea of Blood on its way down. In the past, people called Chuanxiong as a qi medicine in the blood. If used for coronary heart disease and angina pectoris, it can be used together with Safflower, Salvia, Radix et Rhizoma and Radix Paeoniae. If used for diseases caused by stagnation of qi and blood, it can be used together with peony bark, angelica and raw earth, and if used for dysmenorrhea, it can be used together with angelica, peach kernel and safflower. If used for bruises and injuries, localized swelling and pain, it can be used in the same way as gardenia, peach kernel and safflower. If used for cold and headache belonging to wind-cold, it can be used together with thornbush, windbreak and dahurica. If it belongs to wind-heat, it can be used with Chrysanthemum and Peppermint. If used for rheumatic paralysis and pain, it can be used as equivalent with Qiangwu, Dushu and Fangfeng. For cholecystitis to epigastric pain, it can be used with Radix Bupleurum and Scutellariae. For gastritis with epigastric pain, acid vomiting and heartburn, it can be used with Dandelion and Mu Xiang.