To improve the blood supply to the brain, first of all, patients are advised to have an ultrasound of the neck blood vessels to assess the degree of atherosclerosis, whether the patient has intimal thickening or stenosis of the blood vessels. If the patient has significant vascular stenosis, he or she can be given oral medications to improve microcirculation, such as ginkgo biloba drip pills, blood circulation capsules, ginkgo biloba preparations, and if necessary, butylphthalide soft capsules or statin lipid-lowering drugs to protect the intima. If the patient’s cerebral blood supply deficiency is caused by low blood pressure, cerebral blood circulation deficiency and low blood volume, it is recommended that the patient should drink more water and take some drugs that can enhance blood circulation, such as some Ginkgo biloba, and also apply some herbal tonics that can benefit, support and tonify the qi for regulation.