Ischemic foci in the head means that the small capillaries in the brain are occluded by atherosclerosis, resulting in localized ischemia and hypoxia in the brain tissue, and the foci are formed after necrosis, which can also be understood as lacunar cerebral infarction. The formation of ischemic foci in the brain is related to atherosclerosis of cerebral arteries caused by hypertension, diabetes and hyperlipidemia, which are small vascular lesions in the brain. The main treatment is to prevent the reoccurrence and increase of cerebral infarction and actively control these risk factors. Patients should usually take oral platelet aggregation drugs, such as aspirin or Poliovel. At the same time, it is recommended that patients should be given treatment to improve blood circulation in the brain, and they can usually take oral medications such as blood plugging tablets and vermifuge capsule. It is recommended that the patient should have an ultrasound examination of the neck to see if there is atherosclerotic plaque formation. If there is a problem in this area, it is recommended to start atorvastatin calcium tablets to lower lipids and stabilize plaque and protect the endothelium of blood vessels.