The possibility of curing purpura kidney is very high. Purpura nephritis is caused by allergic purpura, this disease is mainly due to allergies to certain foods, drugs or pollen and other things caused. After the allergy, there will be a lot of foam in the urine or red urine, and when the routine urine test found a lot of urine protein or red blood cells, then it is a sign that the patient has purpura nephritis. The first treatment for purpura nephritis is to get rid of the allergen, and then apply hormones and anti-allergic drugs to treat it on this basis. If necessary, you can combine the immunosuppressant together with the treatment. After the above treatment, usually patients may turn negative in urine protein and red blood cells in about two weeks, indicating clinical cure. For most patients, the prognosis for this disease is very good and they are basically cured. For a small number of patients, due to repeated exposure to allergens or not very sensitive to the above treatment drugs, the disease may gradually become chronic nephritis and cannot be cured.