How did the doctor's family from Malegaon end up turning to Sai Baba's Udi after medical treatments failed?

According to Chapter 34, the family resorted to seeking Sai Baba's help out of sheer desperation. The family included a degree-holding doctor whose nephew suffered from a severe bone-cyst, also called Hadyavarn. Despite trying numerous treatments from expert physicians and surgeons, including both native and foreign remedies and even surgery, the ailment showed no improvement. Having exhausted all medical options and seeing the young boy's immense suffering, the relatives were at their limit. It was at this point they heard about the famed saint in Shirdi, Sai Maharaj, whose Udi was said to cure incurable diseases. Viewing it as a final resort, they decided to travel to Shirdi to seek this spiritual remedy, hoping it would avert the calamity where all worldly efforts had been exhausted.