Depends. This depends on the complexity and other injuries. In a isolated epidural hematoma that is evacuated rapidly, patients may go home the next day. A lot depends on the size, time after injury, neurological status after the surgery. In general, most require a few days to recover before going home.
Varies. This will depend of the extent of brain injury suffered. In some cases with minimal injury you may be able to go home after a couple of days, in other cases it might be weeks.