What remedy did Sai Baba prescribe for Amir Shakkar's rheumatism, and what were the circumstances?

Amir Shakkar, who was afflicted by severe rheumatism, approached Sai Baba and prayed for deliverance from his sorrow. As recounted in Chapter 22, Baba's prescribed remedy was not a physical medicine but a command: he was to stay steadily in the Chavadi. This was the same place Baba would occupy every alternate night. Despite the Chavadi being a dilapidated and uncomfortable place, Amir was told to reside there for nine months. Baba's firm words were the only medicine offered, emphasizing faith over physical comfort.