When swelling occurs in the ankle, first of all, the limb can be elevated, which can improve the venous blood return to the distal end and play the role of physical therapy to reduce edema, and the cause of the swelling should also be clarified. If unilateral ankle edema occurs after trauma, you can choose to apply local compression bandage and apply elastic bandage. In the acute stage, you can also choose to apply ice, and at the same time, you can also carry out appropriate anti-inflammatory treatment. You can also apply topical red medicine aerosol or white medicine aerosol. During the treatment period, pay attention not to put weight on the ankle and avoid activities to recover gradually. There are also some patients with lower limb swelling due to renal insufficiency, bilateral symmetrical swelling, should be given diuretics in time, can be oral dihydrocotrimoxazole tablets, or combined with the Ativan tablets, during treatment pay attention to prevent complications. Because many patients are prone to low potassium, it can also be combined with oral supplementation with Diazoxide tablets.