How Can Nephrotic Syndrome Be Treated?

Dear Doctor, My daughter Shifana, age 17 is a Nephrotic patient since 1997. She is taking Prednesoline always. She is not recover from this disease to date. She is getting maximum 60 days after medication. I am waiting for your advise. Regards, Shams Health in good condition. Wight is now 57 Kg. Protein : +++