My bro has duff (46%) from child hood. When we consult to a doctor at his childhood. Doctor says, he was very weak so it happened. He will recover when he grow up. And also he can not talk normally. Some words are cannot spoke by him. He can not hear from some far also. But he understands by lip reading. We already tried hearing machine at cost 30000. Is there any cure of that duff and talking clearly by any operation. My bro age is now 17 running. please doctor give any suggestion. We are suffering for him very much.