Peripheral tissue edema will appear after cerebral infarction, which usually starts to appear on the 2nd-3rd day after the onset, reaches the peak of edema in 7 days, and disappears around two weeks. For patients with cerebral edema, which is mainly seen in large cerebral infarction death, severe cerebral edema can cause increased intracranial pressure and even brain herniation, leading to the death of the patient. For patients with increased intracranial pressure, cranial pressure-lowering therapy should be given in a timely manner. Clinically used antihypertensive drugs are mainly mannitol, glycerol fructose and tachyphylaxis. If the patient’s intracranial pressure is severely elevated and life-threatening, surgical treatment can also be given, mainly debridement to lower the cranial pressure and save the patient’s life. At the same time, human albumin can also be injected intravenously, which has both a certain effect of lowering cranial pressure and a certain nutritional effect.