EMDR is short for Eye Movement Desensitisation and Reprocessing, a psychological phenomenon that was discovered and developed as a therapeutic technique in the late 1980s.
It is a non-hypnotic technique that allows disturbing memories to be reprocessed so that they become much less troublesome. It does not remove memories but changes the emotions attached to them so that they become more comfortable. Events that respond well to EMDR include assaults of any kind, accidents, witnessing traumatic events, abuse and phobias; the treatment is of great use for those in the emergency or military services and others who are exposed to traumatic scenes and situations.
An article giving useful information on past trauma and its treatment using EMDR here.
I frequently use EMDR in conjunction with hypnotherapy so that different aspects of a problem can be tackled in a comprehensive way. Not every patient will receive EMDR treatment; like all my therapy, each patient is treated as an individual and their treatment is tailored according to their individual needs.