Stellate ganglion block is a method of blocking sympathetic nerves innervating the head, face, neck, upper extremities and upper chest by injecting local anesthetic into the loose connective tissue containing the stellate ganglion. This method originated in Japan and is now widely used in China. Indications for stellate ganglion block: Ischemic diseases and trauma of the upper extremity: thrombo-occlusive vasculitis, Raynaud’s disease, frostbite, embolism, etc. Pain with inflammation and swelling: herpes zoster, frozen shoulder, facial nerve palsy, sudden deafness, acute thrombophlebitis, thrombotic swelling, postoperative lymphatic swelling. Zheng Lin, Department of Traditional Chinese Medicine and Orthopedics, Gucheng County People’s Hospital Pain related to sympathetic excitation: reflex sympathetic dystrophy, such as phantom limb pain; tension disorders, such as tension headache, shoulder condensation, etc. Functional disorders: cerebral thrombosis, cerebral infarction, angina pectoris, etc. Others: migraine, cluster headache, indeterminate headache, hyperhidrosis, allergic rhinitis, asthma, etc. Complications of stellate ganglion block: pneumothorax: chest pain, dyspnea, radiating back pain. Local anesthetic intoxication: spasm, loss of consciousness, respiratory arrest. Total spinal anesthesia: respiratory arrest, cardiac arrest. Dysphagia, hoarseness: swallowing with pain. Upper extremity palsy: numbness often with muscle weakness, which may resolve on its own. Determination of the efficacy of stellate ganglion block: Horner’s syndrome is considered a successful block. Conjunctival congestion and tearing. Pupil narrowing and unequal size of both pupils. Droopy eyelids and small eye fissures. Warm sensation on the face and upper extremities, less sweating or disappearance.