Patient: Conservative treatment is not effective, what is the best way to reduce pain? Qingdao University Medical College Hospital, Department of Interventional Radiology, Yu Dongsheng: Patients should actively use interventional treatment methods to control the lesion in the early stage of the lesion, conservative treatment mostly uses oral drugs or intravenous drip thrombolysis, but sometimes the stenosis and occlusion of small arteries is not recoverable, you need to first lower limb arteriography to understand the occlusion, and then perform interventional surgery to expand the stenosis or occlusion, so that blood flow is restored, your symptoms will be relieved. Your symptoms will be relieved.