The number of days of infusion therapy for patients with cerebral infarction is determined by the severity of the disease, generally 7-10 days for patients with mild cerebral infarction. In severe cases, it takes 14 days or even longer. In case of large cerebral infarction, there is usually cerebral edema, the appearance of cerebral edema usually starts on the second day, the peak of edema is 4-5 days, the cerebral edema starts to subside on the seventh day, and the cerebral edema basically disappears in 14 days. For patients with cerebral infarction, clinically, according to the time of onset and the pathogenesis of patients, thrombolysis, fibrin-lowering, anticoagulation and anti-platelet aggregation protocols are selected, and oxygen radical scavenging and cerebral protection treatments are also given. Clinically used drugs to improve blood circulation are mainly Shuxinin, Vibramodulin, Chuanxiongzin and sparing blood; neuroprotective drugs are mainly edaravone, cytarabine, cerebroprotein hydrolysate and piracetam; drugs to lower cranial pressure are commonly used clinically are mannitol, glycerol fructose and tachyphylaxis, and also intravenous infusion of human blood white, which has a certain role in lowering cranial pressure and also has a certain nutritional effect.