What ailment did Amir Shakkar have, and what was Sai Baba's prescribed treatment for him?

Amir Shakkar was afflicted with severe rheumatism and sought a remedy from Sai Baba. As detailed in Chapter 22, Baba's instruction was for Amir to stay steadily in the Chavadi. This was a surprising and difficult prescription, as the Chavadi was an old, dilapidated building filled with dampness, wind, and cold, which would seem to worsen rheumatism. Despite these contrary external conditions, Amir accepted Baba's word as his medicine and stayed there for nine months, demonstrating his immense faith in the master's unconventional methods for healing and deliverance from sorrow.