Cerebrovascular spasms are often recurrent, mostly in patients with a history of atherosclerosis, and can occur after exertion, stress, poor rest or cold weather, as well as sudden increases or decreases in blood pressure. Cerebral vasospasm can occur with dizziness, headache, nausea, vomiting and episodes of numbness and weakness in the limbs in severe cases. Patients can be given oral calcium antagonists to relieve vasospasm, commonly used are flunarizine hydrochloride, nimodipine, when applying nimodipine, patients are advised to monitor blood pressure to avoid blood pressure dropping too low. If necessary, the patient can be given intravenous medications to relieve vasospasm, such as fasudil hydrochloride, prostaglandin, etc., which have a certain effect on relieving vasospasm.