severe chronic back pain

Hi ladies my fiancé been suffering from really bad back pain he sleeps sitting up of how severe he's pain is. Every time we take him to emergency room they end up stating he has sciatica but never look deep into his pain and run no type of test or MRI cat scan nothing we sit in a room over 5 hours for a dr to come in for about 3 min to do nothing. In what words can I state please help my fiancé or make them  look at his back to do X-ray or something.