Study on the Treatment of Children With Purpura Nephritis With Huaiqihuang Granules

Inclusion Criteria: 1. For children diagnosed with purpura nephritis, the diagnostic criteria for purpura nephritis shall refer to the 2016 edition of Evidence-based Guideline for diagnosis and Treatment of Purpura Nephritis published by the Nephrology Group of The Chinese Medical Association Pediatrics Branch, specifically as follows: Hematuria and/or proteinuria occur within 6 months of the course of allergic purpura. The diagnostic criteria for hematuria and proteinuria are as follows: A. Hematuria: gross hematuria or ≥3 RBC/high-power field (HP) under 3 times of microscope within 1 week. B. Proteinuria: if meeting any of the following conditions: 3 routine urine tests within 1 week qualitatively indicate positive urine protein; 24h quantitative urine protein \>150 mg or urine protein/creatinine (mg/mg)\>0.2; Urinary microalbumin was higher than normal for 3 times within 1 week. Very few children in the acute course of allergic purpura 6 months later, recurrent purpura, hematuria and/or proteinuria for the first time, should be sought for renal biopsy, such as IgA mesangial mesangial proliferative glomerulonephritis, can still be diagnosed as purpura nephritis. 2. 24-hour urinary protein quantification of 0.5 to 1.0g/1.73m2, and the total amount does not exceed 1.0g (to be quantified in non-infectious conditions); 3. Age: 6-14 years old; 4. Normal renal function: eGFR≥90ml/min/1.73m2; 5. Other manifestations of allergic purpura: skin purpura, abdominal pain, blood stool and joint swelling and pain have been relieved, and the use of hormone or immunosuppressive agents has been stopped for 2 weeks. Exclusion Criteria: 1. Abnormal ophthalmic examination (fundus, visual field, photosensitivity); 2. Combined with gross hematuria; 3. Serious diseases of the heart, liver and other important organs, as well as diseases of the blood and endocrine system; 4. Patients who are known to be allergic to any component of Locust and wolfberry yellow or ACEI/ARB; 5. Patients who have participated in other clinical trials within three months before enrollment; 6. The investigator judged that the patient was not fit to participate in the study;(7) renal purpura nephritis wear results indicate Ⅲ magnitude or hints chronic purpura nephritis.