As per his MRI both Brain and Spine are affected.  Recovery of the patient depends on the clinical condition at which treatment was started. If initially it was only a minor problem he would have recovered in 6 months. If it was permanent damage to the neural cells, he may remain the same. Physio is given to prevent worsening of the present condition, to prevent stiffness and to aid recovery. Need complete details of his problem and physical examination to comment on his recovery time.