The advantage of nerve block for the treatment of pain is that it is effective in pain relief and generally has no systemic adverse effects, while the disadvantage is that it may cause nerve damage and local injury. Injecting local anesthetics in the distribution area of the nerve to block the conduction of its impulses to anesthetize the local area so as to achieve the purpose of pain relief, known as nerve block. Nerve block treatment of pain pain relief effect is good, can relieve the patient’s pain in a timely manner. Because of the local use of drugs generally no systemic adverse effects, the operation is convenient and suitable for promotion. However, the use of local anesthetics or mixed with glucocorticoids to treat at the same time, may lead to local nerve damage motor or sensory nerve paralysis, serious muscle atrophy, local injuries such as redness, swelling, paresthesia, hard nodules and infection. Before using nerve block to treat pain should be comprehensive assessment of the patient’s physical condition, careful consideration. It is recommended to go to a regular hospital and choose the appropriate treatment under the guidance of the doctor.