Can you tell us how you suffered the injury? e.g. repetitive strain, jumping, running etc. The initial work would be done to 'wake up' the intrinsic muscles of the foot so that they can assist basic stabilization of your various foot arches. Following that assessing the entire lower limb with a view to prevention would be part of your rehab. Even swimming would be useful in the early stages where the foot might not like to much weight bearing but which could cope with the resistance of water during kicking.