Why did the family of the sick child decide to go to Shirdi, even though they had already tried many medical treatments?

As detailed in Chapter 34 of the Shri Sai Satcharitra, the family turned to Sai Baba as a final resort after all other options were exhausted. The child's uncle was a doctor, and they had tried numerous treatments from physicians and expert surgeons, including both native and foreign remedies, without any success. When the disease did not subside, they heard of a great saint, Sai Maharaj of Shirdi, who could heal diseases just by his sight. Believing this was their last hope, they decided to go, thinking, "Let us go and bow at his feet; let us try this last resort." They were motivated by the hope that Sai Baba might apply Udi with his own hand and cure the otherwise incurable ailment.