I HAVE GOT A PATIENT WITH HEARING LOSS FOR THE PAST 12 YRS HE IS USING EARING MACHINES FROM THEN. FOR THIS PATIENT CAN WE FULLY RECOVER HIM FROM HIS TROUBLE OR ANYONE GOT SUCCESS OR ANY STRONG IDEAS IN THIS RELATED CONDITIONS MAY PLEASE COME FORWARD & HELP ME TO PRACTICE WELL.
USEFULL TIPS ALSO HIGHLY APPRECIATED.