For cerebral infarction with numbness in the left half of the body, nerve nutrition therapy should be given, and the commonly used drugs mainly include vitamin B1, adenosine cobalamin and methylcobalamin, and rat nerve growth factor can also be injected intramuscularly, and acupuncture treatment can be given if necessary. Numbness in the left half of the body of patients with cerebral infarction is a kind of sensory dysfunction caused by cerebral infarction, and the primary disease should be treated actively at the same time. The treatment of cerebral infarction includes ultra-early if there are indications and no contraindications to give thrombolytic therapy. If there is no indication for thrombolytic therapy, anti-platelet aggregation can be given to improve cerebral blood circulation and improve cerebral metabolism, as well as anticoagulation and fibrin-lowering therapy, and butylphthalide can also be given to improve the signs and symptoms of neurological deficits. Cerebral infarction causing left hemianesthesia is mainly seen in patients with right basal ganglia area cerebral infarction, thalamic infarction and massive cerebral infarction. A part of patients with large cerebral infarction can also have impaired consciousness, such as drowsiness, lethargy or coma, and a part of patients can cause cerebral edema and increased intracranial pressure, and patients with increased intracranial pressure should be given timely cranial pressure-lowering treatment.