If a large cerebral infarction occurs, brain edema often peaks within two to three days, and the mortality rate is extremely high. If medical attention is sought within six hours of onset, thrombolytic therapy can be considered. If emergency thrombolysis is exceeded, then only conservative drug treatment is available. For example, mannitol dehydration to reduce intracranial pressure, nourish neurons, protect brain cells, provide nutritional support, etc. After a stroke, it is essential to monitor changes in the patient's consciousness and pupils, dynamically assess the patient’s Glasgow Coma Score, and be aware of various potential complications. Family members should be well-informed about the patient's condition, etc. (Specific medications should be administered under the guidance of a doctor.)