If he doesn't want to continuing doing the treatments please find someone to prescribe LDN or order it yourself. Do not delay. I know where your boyfriend is at, I have been there. LDN saved me, because no one seemed to be able to stop the unbearable pain.
I thought I would never walk again and that I would be a burden to my family. Within a short time of taking LDN my mood altered as if a switch was flipped. I could drag myself up and downstairs. My balance returned and I could stand in place without falling over screaming.