Nerve block therapy is not closed therapy. Nerve block therapy has been carried out in China for more than 20 years, and the scope of application has gradually expanded, but there is still a misunderstanding of nerve block, often confusing the concepts of “nerve block”, “conduction block anesthesia” and “closure The concept of “nerve block”, “conduction block anesthesia” and “closure” are often confused. Not only many patients cannot distinguish the meaning of “nerve block” and “closure”, but also some medical professionals, even those who are engaged in pain treatment, fail to unify the name in clinical application. The term “closure” has been used for a long time and has been deeply rooted in the society, which has confused the concept and made the public confused between “nerve block” and “closure”. What are the similarities and differences between “nerve block therapy” and “closure”? The definition of closure therapy is: the local anesthetic nufcaine is injected in certain parts of the body, so that the malignant stimulus of the local lesion is no longer transmitted to the cerebral cortex, the cerebral cortex to play a protective inhibitory effect, so as to achieve the purpose of treatment of a treatment method. However, with the continuous derivation in clinical application, the modern (or modified) “closed” therapy (temporarily with quotation marks “closed” therapy to distinguish it from the traditional closed therapy) has undergone qualitative changes in the purpose of application, drugs used, treatment scope and other aspects. The change. Its treatment method mostly uses various local anesthetics plus corticosteroid mixture, the implementation of local pain injection, treatment of bone, joint, soft tissue pain. Over time, it has become a common knowledge among doctors, patients and the public and used to be called the so-called “closed” therapy. As we are now commonly known as “closed” to the abuse of hormones, not only lost the meaning of the original traditional closed therapy, but also affect the efficacy of traditional closed therapy, especially serious is the side effects caused by the repeated occurrence of adverse social impact, and even make some patients to “closed “fear, refuse to accept the” closed “treatment. Coincidentally, since the 1980s, the domestic nerve block therapy, the method is also to puncture injection as the main treatment method, due to many people on the “nerve block therapy” and modern “closed” the concept of confusion between the two, and even mistakenly believe that As many people confuse the concept of “nerve block therapy” and modern “closure”, they even mistakenly believe that nerve block is “closure”, thus creating a misunderstanding and bad impression of nerve block. Glucocorticoids (corticosteroids) Because of their strong anti-inflammatory effect, these drugs have been widely used in clinical treatment of various pains in the 1980s, and some doctors often use these drugs as combined analgesics, which does not exclude that it is related to the popular trend. However, the clinical treatment of cancer pain does have the effect of improving pain and other symptoms. In the past 20 years, these drugs have become quite popular in the field of pain treatment, and they have become the drugs of choice. At the same time, adverse reactions have occurred time and again, such as Cushing’s syndrome, osteoporosis, aseptic femoral head necrosis, hypertension, diabetes, mental abnormalities, menstrual disorders, impotence, subcutaneous tissue atrophy, and even joint dysfunction and disability due to inappropriate use of the drug, as well as cases of death due to inadvertent entry into the subarachnoid space. These lessons are a wake-up call for doctors and patients, so some doctors regard these drugs as “dangerous elixirs” and are cautious when applying them clinically, while some patients refuse to accept these drugs.