Patients with cerebral infarction are generally afraid of cold. If they are afraid of cold, they can be given drugs to improve blood circulation, such as oral Ginkgo biloba drops and Peiyuan Tongbao capsule, and if necessary, they can also be treated with intravenous infusion, such as Shuxinin and Vibrant Brain Road. Patients should be instructed to pay attention to keeping warm, especially in winter when the weather is cold, so they must add more clothes when they go out. Cerebral infarction is an acute ischemic and hypoxic cerebrovascular disease, which is caused by various causes of blood supply disorders in the brain, thus causing cerebral ischemic and hypoxic changes, which leads to limited cerebral tissue ischemia, hypoxic necrosis and softening. The main causes of the disease are atherosclerosis, hyperlipidemia, hypertension and hyperglycemia, and hyperhomocysteinemia. In patients with atherosclerosis, luminal narrowing, stiff walls, and poor vascular elasticity, combined with increased blood viscosity in patients, may cause impaired blood supply to the brain, which may lead to cerebral ischemia and hypoxic changes, and may also cause systemic blood circulation disorders, and patients may develop fear of cold, etc.