The main goal of treatment of chronic nephritis is to prevent or delay the progressive decline of kidney function. 1, diet therapy (1) low protein and low phosphorus diet: choose high-quality protein foods (such as eggs, milk, fish, lean meat, etc.), protein intake is limited to 0.5-0.8g/(kg/d), limiting protein at the same time can achieve the purpose of low phosphorus. (2) People with obvious edema and hypertension should limit salt <3g/day. 2. Antihypertensive diuretic The most beneficial antihypertensive drugs are angiotensin converting enzyme inhibitors (ACEI), such as captopril and enalapril; angiotensin II receptor antagonists (ARB), such as valsartan and colesartan. Other antihypertensive drugs include calcium channel blockers, beta-blockers, diuretics and other vasodilators. 3, platelet depolymerizing drugs Commonly used are dipyridamole (Pansentin) or small dose aspirin. 4.Chinese medicine At present, it is believed that Cordyceps, Rhubarb, Ginseng and Rhizoma Chuanxiong have the function of protecting kidney function.