[Use of hypnosis in chronic pain : a setting in motion].

The biopsychosocial complexity of chronic pain requires a multimodal approach of which hypnosis is one. Its effectiveness is increasingly proven by studies using functional neuroimaging, as well as clinical studies in various etiologies of chronic pain. The goal of hypnosis is to restore the patient to an active role where, during the sessions, he will discover his creative capacities allowing him to temporarily modify or even significantly reduce painful sensations. Regular practice of self-hypnosis amplifies and anchors these changes. Gradually, hypnosis allows patients to regain both physical and mental mobility.