Patients only feel coldness in the skin temperature of the affected limb, or mild numbness, and are easily fatigued after activity. The atherosclerotic plaque forms on the inner wall of the arterial vessels, and as the plaque increases and the lumen narrows, the patency of the pipeline is affected, and the blood flow to the lower limbs is reduced, and when the narrowing reaches a certain level or even completely blocked, the blood flow supplying the lower limbs cannot meet the needs, and the symptoms of lower limb ischemia appear. Preventive and palliative measures for tinea pedis infections that are not easily controlled in the extremities: 1. Actively treat the primary disease: Those suffering from hypertension, hyperlipidemia, and diabetes should actively treat the primary disease. Monitor the condition closely and do not take it lightly. Obese patients should reduce their body weight. To do regular physical examination, in the occurrence of atherosclerosis occlusive disease, to actively cooperate with the doctor for treatment. 2, the pace of walking should not be too fast: in order to avoid the onset of ischemic symptoms. Proper exercise can increase the collateral circulation. However, you should not move heavy objects and maintain a relaxed, calm and stable mood. 3, protect the affected limb, improve blood circulation: because of the lack of blood supply to the affected limb of patients with atherosclerosis occlusive disease, poor nutrition, poor sensation, hot water bags should be prohibited to avoid burns and increased oxygen consumption of the affected limb and aggravate the pain. Pay attention not to scratch the skin of the affected limb, otherwise it is easy to cause infection and difficult to heal. At the same time, strengthen the affected limb warmth, especially in winter, should wear socks and cover the quilt, in order to reduce vasoconstriction aggravate ischemia. 4, quit smoking: smoking is a very bad habit, the combination of carbon monoxide and hemoglobin contained in the smoke, so that the hemoglobin carries insufficient oxygen to cause hypoxemia, so that the arterial intima is damaged, creating conditions for platelet agglutination and lipid infiltration, and the pro-coagulant substances contained in tobacco and tar, that is, rutin protein, so that the blood is in a hypercoagulable state, resulting in increased blood viscosity, increased red blood cells, these have become atherosclerosis These are important factors for the formation of thrombosis on the basis of atherosclerosis. Therefore, patients with atherosclerosis and occlusive disease must pay attention to quit smoking. 5, diet: eat less animal fat and sugar, quit smoking and limit alcohol, and eat more fish rich in unsaturated fatty acids. It is advisable to take fresh vegetables and fruits rich in vitamins, such as carrots, onions, kelp, fungus, etc., and to eat black fungus, mushrooms, etc., which can soften blood vessels.