Pain is an unpleasant feeling and emotional experience that occurs when the organism is damaged, it is a complex set of pathological and physiological changes in clinical manifestations, pain can be localized, or it can be a reflection of systemic diseases. In order to treat pain, first of all we need to understand how pain occurs, we often in our daily life and work because of collision, sprain and other types of trauma and pain, but also in the unknowingly cold, damp, overwork and long-term inappropriate work position after the pain, in addition to our body systems, organs, inflammation or tumors and other lesions can be produced to varying degrees of pain. From the course of the disease, pain can be divided into acute pain and chronic pain, from the part of the body can be divided into headache, neck and shoulder pain, chest and abdominal pain, lumbar and leg pain, etc., from the source of the pain can be divided into soft tissue pain, joint pain, neuralgia, etc., most of the pain caused by the reasons mentioned above can be relieved in the Department of Pain or alleviated. Since the causes of pain and the pain itself are very complex, it takes a certain amount of time to turn to a specialist in order to sort out the categories and make a relatively clear diagnosis, and then the right medicine can be prescribed.