Usage and dosage of Prepared Chuanwu: Decoction, 1.5~3g, preferred to be decocted first and for a long time. The basic efficacy of Prepared Chuanwu is to dispel wind and dampness, warm menstruation and relieve pain. Chuanwu is pungent and hot, good at dispelling wind and removing dampness, warming menstruation and relieving pain. It is a good product for treating wind-cold-dampness paralysis, suitable for cold-dampness paralysis, which can be seen in lumbar and spinal pain, cold pain in joints of the limbs and so on, which can be used in conjunction with safflower, papaya, and grasshopper. Chuanwu can warm the internal organs, dispersing cold pain, applicable to a variety of pain is cold stagnation. If the treatment of cold condensation of the heart vein (cold evil condensation blockage of the heart vein), heart pain through the back, back pain through the heart, hands and feet are not warm, often with dry ginger, red stone resin, epiphyllum and other compatibility. This product relieves pain and can also be used for bruises, bruises and pain. The adverse effects of Prepared Chuanwu are not clear, and it is contraindicated in pregnant women. This product should not be used together with Baihe, Ampelopsis, Hemidesmus, Psidium guajava, Psidium guajava, Smallpox pollen, Psidium guajava, Phellodendron, Phellodendron, Phellodendron, Phellodendron, Phellodendron, Phellodendron, Phellodendron, Phellodendron, Phellodendron, Phellodendron, Phellodendron, Phellodendron. Prepared Chuanwu is poisonous, dosage should be used under medical supervision.