Hypnosis was found to be effective in reducing pain and discomfort associated with repeated unpleasant medical interventions in a study of children with cancer.1

A significant reduction of pain and dysphoria was found following Hypnosis in a study of 19 patients with a variety of musculoskeletal disorders.2

References:

1. Hilgard, E.R. (1977). “Divided Consciousness: Multiple Controls in Human Thought and Action”. NY: John Wiley. 1977

2. Domangue, B.B., Margolis, C.G., Lieberman, D. & Kaji, H. (1985). Biochemical Correlates of Hypnoanalgesia in Arthritic Pain Patients.” Journal of Clinical Psychiatry, 46, 235-238