When ischemic infarct foci are found in the brain, the conventional treatment is antiplatelet aggregation therapy with drugs such as aspirin or clopidogrel, and lipid regulating and plaque stabilizing therapy with drugs such as atorvastatin calcium or resorvastatin calcium. When taking the above drugs, it is necessary to pay attention to the side effects of the drugs, regular outpatient review of blood routine, liver and kidney function, etc. It is also important to screen patients for risk factors and look for abnormalities in blood pressure, blood glucose, and blood lipids. If necessary, blood homocysteine levels should be monitored to rule out the presence of hyperhomocysteinemia. If the above risk factors are found to exist, appropriate oral medications are needed to control these risk factors. For high blood pressure, take oral antihypertensive drugs to control blood pressure; for high blood glucose, take oral hypoglycemic drugs or insulin to control blood glucose; for hyperhomocysteinemia, consider taking oral folic acid and methylcobalamin for treatment.