The mysterious persistence of hypnotic analgesia

Hypnotic treatment of pain has a long history and, among hypnotic phenomena, pain relief is a relatively commonplace focus for intervention, yet we lack a conceptual explanation for this treatment. Hilgard's neodissociation theory accounts for the phenomenon of acute hypnotic analgesia, but not of persistent pain relief. Perhaps the enduring effect of hypnotic treatment can be explained at either of two levels: a neurophysiological model or a learning model. This explanation leads to the further question: How does hypnotic treatment of recurring pain achieve enduring relief? Clinical experience suggests a two-component model. First, the clinician communicates specific ideas that strengthen the patient's ability to derive therapeutic support and to develop a sense of openness to the unexplored possibilities for pain relief within the security of nurturing therapeutic relationship. Second, the clinician employs posthypnotic suggestions that capitalize on the patient's particular pain experiences, which simultaneously ameliorate the pain experience, and which, in small, repetitive increments, tend to maintain persistent pain relief over increasing periods of time.