Edema can be divided into systemic edema and localized edema, systemic edema is mostly seen in chronic renal insufficiency, cardiac insufficiency, etc., localized edema can be seen in inflammatory edema, venous reflux obstruction edema, etc., need to be under the guidance of the doctor to carry out targeted treatment, such as general treatment, drug treatment, etc., there is no optimal method of elimination, need to be based on the cause of targeted treatment. 1. Chronic renal insufficiency: daily life needs to limit the intake of water and sodium; diuretics, such as furosemide, can be used to alleviate the situation of water and sodium retention; patients with renal anemia can be treated with erythropoietin; kidney transplantation needs to be considered when necessary. 2. Cardiac insufficiency: low-salt diet is needed in daily life; chronic heart failure needs to be treated for the primary disease; spironolactone, furosemide and other medications can be used when accompanied by edema. When heart failure is in acute attack, oxygen can be given to keep the airway open. 3. Inflammatory edema: cellulitis, boils, carbuncles, etc. can lead to local edema, and anti-infective treatment, such as penicillin, is needed. 4. venous return obstruction edema: can be seen in the lower extremity varicose veins, lower extremity venous thrombosis, etc., need to avoid long standing, sedentary, may need anticoagulation, surgery and other treatments. There are many other causes of edema, which can also be seen in cirrhosis of the liver, hypothyroidism, drug allergies, etc. Patients with edema are advised to go to the hospital and ask the doctor to make a judgment and give a treatment plan.