Cerebral blood supply insufficiency can be relieved by taking medication for 7-14 days. Cerebral blood supply insufficiency is mainly due to atherosclerosis, resulting in decreased elasticity of the cerebral blood vessels, slowing down of the blood flow rate, and the patient can experience dizziness, headache, and episodes of rotating eyesight, speech stupidity and other neurological deficits. Often, vasodilator drugs can be applied, such as flunarizine hydrochloride or Chinese patent medicines such as cerebral heart qing and ginkgo biloba preparations. After oral drug treatment, most patients can get relief of clinical symptoms after 7-14 days. However, in some patients, due to heavy atherosclerosis, intima-media thickening and lumen narrowing, the symptoms of insufficient blood supply to the brain are not relieved after oral medication, and if necessary, the patient can be given statins to protect the intima-media. If the relief is not satisfactory, patients with severe stenosis can also choose endothelialization and other treatment modalities.