Have you tried the paritta chants on the 7 factors of enlightenment? They are suposed to cure illnesses. I've had a tooth ache one time, i read one of the parittas on the 7FOE and the pain went away. Coincidence? Maybe, but for someone who is in real pain, it wouldn't hurt to try.
He turns his mind away from those phenomena, and having done so, inclines his mind to the property of deathlessness: 'This is peace, this is exquisite — the resolution of all fabrications; the relinquishment of all acquisitions; the ending of craving; dispassion; cessation; Unbinding.'
(Jhana Sutta - Thanissaro Bhikkhu translation)