Bone You Ling is a kind of topical Chinese medicine, which has good effects of warming the meridians and dispersing cold, activating blood circulation, relieving swelling and pain. This drug is mainly applied to the painful area to relieve pain, mainly for the common clinical rheumatism, rheumatoid arthritis, osteoarthritis, in addition, it can also be used to treat bruises, swelling and pain caused by bruises. Bone You Ling is mainly used externally to relieve pain. The Chuan Wu and Cao Wu contained in this drug have a good effect of warming the meridians and dispersing cold, so it can be used to treat some bone and joint pain caused by cloudy weather, rain and cold. In addition, this drug contains more blood-activating drugs, such as vinegar yanhuosuo, safflower and Chuanxiong, which are stronger blood-activating drugs, and can be used externally to improve pain in the joints and bruising and swelling pain caused by bruises.