The methods to reduce edema in lupus erythematosus nephritis are salt restriction, use of diuretics, glucocorticosteroids and immunosuppressants. 1. Salt limitation: edema in nephritis indicates that there is water and sodium retention, limiting sodium intake can reduce edema production to a certain extent, and achieve the purpose of partially reducing edema. 2. Use of diuretics: commonly used diuretics are hydrochlorothiazide, furosemide, etc. Whether it is lower extremity or thoracic and abdominal fluid, diuretics should be given to help urinary excretion, dehydration and reduce edema. 3. Glucocorticoid and immunosuppressant: when nephritis is in the active stage and the effect of diuretics is not good, glucocorticoid (e.g., prednisone) and immunosuppressant (e.g., cyclophosphamide) can be considered to inhibit inflammatory reaction and help reduce the swelling. All of the above drugs should be used under the guidance of a doctor, do not self-medicate. It is recommended that patients go to the hospital in time and follow the doctor’s instructions for standardized treatment.