Swelling of the body depends on the specific situation. If the swelling is in a certain area, it may be due to localized lesions such as trauma, malnutrition, and so on. If the whole body is swollen, it may be kidney failure, heart failure, impaired liver function will cause symptoms of oliguria. It is necessary to clarify the cause of the disease and target treatment. 1. Localized swelling: often associated with injury, malnutrition and other conditions. If the swelling is related to injury, you can speed up the local blood circulation, appropriate hot compresses or oral antibiotics and injections of intravenous fluids to ease the control of local swelling. If the swelling is related to malnutrition, it is recommended to eat high protein and nutritious food. 2. Generalized swelling: patients with improper use of drugs can cause acute renal failure, swelling, oliguria, anuria, heart failure, impaired liver function can cause generalized edema. At this time, you should go to the hospital, diagnose the disease as soon as possible, and use medication according to the doctor’s advice.