Interstitial nephritis is categorized into acute and chronic interstitial nephritis, and there are differences in treatment. Acute interstitial nephritis can be treated with glucocorticosteroids, and chronic interstitial nephritis does not usually need hormone therapy. 1. Treatment of acute interstitial nephritis (AIN): remove the cause of the disease, such as stopping the use of suspected drugs, rational application of antibiotics to treat infectious AIN; supportive therapy, if acute renal failure, combined with hyperkalemia, pulmonary edema and other indications for renal replacement therapy, blood purification support should be carried out; glucocorticosteroid therapy, such as prednisone, can also be used. 2. Treatment of chronic interstitial nephritis (CIN): the treatment is mainly based on symptomatic supportive therapy, such as correcting electrolyte disorders and acid-base balance imbalance; supplementation of erythropoietin to correct renal anemia, and control of hypertension. All of the above drugs should be used in accordance with the doctor. It is recommended that patients go to the hospital in a timely manner, under the guidance of a professional doctor, complete the relevant examinations, clarify the diagnosis of the disease, and receive standardized treatment.