Whether it is the limb arterial occlusive disease, causing limb ischemia, or limb venous reflux disease, blood reflux disease, so that the limb is in a stasis state, can make the limb resistance to infection and tissue repair ability to reduce the limb, therefore, the affected limbs of the protection and hygiene is very important and can not be ignored. The main ones are: 1, cold and freezing, can cause vasoconstriction, spasm, so that the thrombosis occlusive visceral vasculitis, occlusive atherosclerosis, Raynaud’s syndrome and other aggravating conditions. In winter, should pay attention to the cold and warm, wearing soft and warm suitable cotton socks, cotton gloves and cotton shoes, should not be in the cold environment for a long time to stay and work. If possible, you can go to the warm south for recuperation and vacation. 2.In daily life and work, pay attention to the protection of limbs, avoid the affected limb stabbing, pressure injury, abrasion, to prevent trauma infection. 3.Due to ischemia and blood stasis in the affected limb, it is better not to wear tight clothes and pants, not to use garters, not to wear tight socks, so as not to affect the blood circulation of the affected limb and aggravate the condition. 4, often with warm water (40 ℃ or so) or soap to wash the affected limbs, feet, especially pay attention to the dirt between the toes, clean, wipe with a soft cotton towel, keep clean and dry. Do not use too hot water (60 ℃ or more) to wash the feet. 5, hands and feet finger (toe) nails, should be timely trimming (after soaking in warm water soft), can not cut too deep or damage to the skin limbs, in order to avoid infection and ulceration. 6, the affected limbs of the skin limbs dry, cracked, daily soak hands and feet in warm water for 30 minutes, external application of clam oil, skin cream, glycerin, etc., or with the elephant skin cream, moxibustion cream external paste, very effective. Wearing nylon and chemical fiber socks can easily dry and crack the affected feet, so it is better to wear cotton socks. 7, the affected foot has corns, available warm water soak soft, slowly peel off the old hard thick skin can, can not be applied corrosive drugs! 8, the affected limbs have tinea pedis (can cause lower limb dengue), should be actively treated. Available nitro-alum wash medicine, dry wet wash medicine, ride the warmth and heat wash and soak the affected feet, external application of tinea pedis cream and so on. 9, the affected limbs have inflammation, can be nitrate alum wash medicine, warm dip or wet hot compresses on the affected area, after washing and external application of yellow horse tincture, tincture of Salvia divinorum, 3 to 4 times a day. Or use fresh amaranth, add appropriate amount of manganese nitrate, pounded into mud paste external compresses on the affected area. 10.When ulcer or gangrene occurs in the affected limb, it should go to the hospital to change the medicine and bandage, and should not be handled by oneself, so as to avoid aggravation of infection extension. 11, in the affected limb, prohibit the use of electric heater baking, or in the affected limb to implement the fire needle, it is easy to gangrene infection, resulting in serious consequences, even amputation. 12, patients with varicose veins of lower limbs should elevate the affected limbs when resting, minimize standing and walking for a long time, wear elastic stockings or use elastic bandage, which is good for eliminating venous stasis of lower limbs and reducing the symptoms. 13, diabetic foot patients due to peripheral neuropathy, the affected foot on the pain or temperature sensation decline is very easy to lead to trauma, burns and other secondary infections, and ultimately lead to a big disaster.