2010 lost taste smell severed nerve doctor said nerve behind left ear, became deaf from shattered bones. can nerve be repaired and taste recovered?

Comments: Unfortunately, it has been 5 years with permanent changes due to you injury, and unlikely to acquire any progressive healing at this point. Surgery would only be an option, if it could be conclusively demonstrated that a bony fragment is compressing a nerve, and even a decompression could be rather disappointing. Sorry, but there may be very little potential of reversal at this point.