Carotid artery stenosis cannot be recovered by conservative treatment, the purpose of which is to inhibit the further development of atherosclerosis so that the degree of dynamic carotid stenosis does not worsen in a short period of time. Commonly used drugs include aspirin, hydroclopidogrel, and tigretol, which are anti-platelet aggregation drugs. There are also statin lipid-regulating drugs, such as atorvastatin, simvastatin, and rasulvastatin, which can stabilize the plaque and inhibit the inflammatory response of the artery, thus turning soft plaque into hard plaque and making the plaque more stable, which can prevent the occurrence of cerebral embolism. If surgery is indicated, for example, if the carotid artery stenosis is greater than 70%, the carotid artery can be temporarily stripped of its intima by means of an open incision to restore the carotid artery to its original lumen form.