Pyelonephritis and nephritis are two completely different diseases. Pyelonephritis is an infectious disease caused by bacteria, viruses, mycoplasma, chlamydia, etc. Treatment generally requires the use of antibiotics. The vast majority of patients can fully recover within two weeks under the treatment of sensitive antibiotics, without any sequelae. On the other hand, nephritis is mostly an autoimmune disease, not an infectious disease caused by pathogens. Therefore, its treatment does not require the use of antibiotics. Treatment usually involves ACE inhibitors or ARB type RUSH blockers, glucocorticoids, immunosuppressants, cytotoxic drugs, etc., and the course of nephritis is relatively long, with some patients having relatively poor prognosis. (Please use medication under the guidance of a doctor.)