1.Keep the skin clean and hygienic, cut finger (toe) nails regularly, avoid scratching if the skin is itchy to prevent skin breakage and infection. 2, calf ulcers or edema, more bed and the affected limb elevated 20 ° ~ 30 ° to promote blood flow back. When lying in bed, you can often do calf extension and flexion exercises to facilitate blood flow back to the lower limbs. 3.If the skin of the leg has patches or along the vascular distribution of redness, swelling, heat and pain, it may be combined with dermatitis or phlebitis, and in severe cases, the patient may have fever and elevated white blood cells. At this time must apply sensitive antibiotics anti-infection treatment, until the redness, swelling, heat and pain subsided before surgery, to avoid the spread of infection caused by surgery. 4. If the leg has an ulcerated surface, it should be treated with a dressing change and a bacterial culture of the ulcerated surface. Antibiotics will be used to control the infection according to the culture results. After repeated dressing changes and negative bacterial cultures, the infection is controlled and surgery is scheduled. This process may take 1-2 weeks or even longer depending on the condition. 5.People suffering from tinea pedis should treat tinea pedis first. Because of poor skin nutrition in patients with varicose veins, infection is prone to occur when bacteria enter through the skin breach after the combination of tinea pedis. It can be treated with dacrynic cream application and surgery can be considered after the tinea pedis is healed.