How To Safely Remove Fish Bone Stuck Inside Throat?

FISH BONE STUCK IN MY HUSBAND S THROAT . CT SCAN REPORT HAS FISH BONE. BUT NO FOREIN G BODY IN X RAY AND NO SEEN FOREIGN BODY IN ENDOS COPY. DOCTOR SAYS UNABLE TO REMOVE , UNABLE TO TRACE CORRECT POSSITION . NOW NO SWELLEN & NO PAIN . PL TELLE ME FOREING BODY IN BODY UNSAFE OR NOT