5 year old diagnosed with hypercalciuria

Can you please tell me how to treat this naturally? Apparently, not only does she develop kidney stones constantly, but it also affects her bone density and intestines. She has gone through so much pain since she was only a year old. It started with constant bladder infections, and through time, her doctors had figured out that she had this kidney condition, through much urine and blood testing. I'm really desperate here, anything would be helpful. I can't stand to see her in so much pain. Thanks for your time.