I'm Dr Chaithanya, experienced General Physician attending you today.
I completely understand his situation and feel sorry for him.
Did you fin out from the rehabilitation centre [from the staff] that what treatment he is being given on daily basis?
Sometimes, the environment he is recovering really matters, it can help or it make the situation worse. You need to find out what exactly is his treatment and rehabilitation regimen that is going on for him on a daily basis, and then you consult a neurologist or a doctor who treated him to take an opinion about if rehabilitation regimen is helping him or making his situation bad.
A Psychiatrist help also helps, as the patient might experience mild depression in the scenario you explained.
Any doubts, please ask me,
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