Pain Phobia

DH has recently been admitted to hospital after collapsing with pneumonia.

Briefly the story is that he has an ongoing problem but the biggest issue is that he is undoubtedly phobic to back pain. He goes into an absolute panic.
This time he took to bed and after 6 days of trying to get him to move I contacted the Dr. who spoke to him and told him that he must move. He knows that but was too frightened to do so. However he struggled up and then after 5 or 10 minutes keeled over.

My question to you all is;-

Does anyone know of whether he could get help with his phobia, it really is debilitating, as every day he mentions his back and how it is and worries. It is affecting his life (and mine).
I did wonder about hypnotherapy what do other GN's think?