How did the parents of the sick child plead their case to Sai Baba, and what was his immediate response according to Chapter 34?

Chapter 34 describes a very emotional plea from the parents. Upon arriving in Shirdi, they took Baba's darshan, prostrated at his feet, and narrated their son's suffering. With choked voices, folded hands, and pitiful faces, they conveyed their desperation, stating they could not bear to see their son's pain and saw no way out. They begged Sai Samarth to place his hand of protection on the boy's head and remove the ailment, explaining they had come seeking refuge with total devotion. In response, Sai, described as the embodiment of compassion, immediately reassured them. He told them to be worry-free and instructed them to take his Udi and smear it on the wound.