Health
In 'Bangers and Mash' Keith Hern writes "Focus on the destination", Helen's phrases do have a habit of popping up at opportune moments". It gave him a different perspective, focused on his desired future. Seeing his whole medical intervention treatment as a journey, which would have some unexpected detours, however he knew he'd complete the journey and become healthy.  This was much more useful than focusing on the symptoms or hallucinating on potential failure. Top class sports professionals like Tiger Woods use mental rehearsal techniques to see all their future successes. With NLP, similar techniques are simply applied to other areas of life.

NLP also has unique tools to easily release past traumas, dis-ease and limiting beliefs. This enables people to create more empowering beliefs about themselves, their health and their world.  By disconnecting a traumatic memory from the physical emotion created at that time, people can remember difficult events without reliving them. This creates the space for deep healing to occur.

Trauma
NLP has the tools to release this trauma safely. Using techniques to view past traumas in a very, very, very dissociated manner, the events are gently brought into consciousness without sucking in the negative emotions or terror created during the event.
Thus clients can release historical shackles, melt demons and reframe episodes without reliving events or feeling the trauma previously held in the body. This brings rapid transformation and freedom from the past. 

Some of Helens published articles link the inpact of childhood trauma with adoption issues.

The following quote is from a non NLP source, the preface of "Traumatic Stress, the Effects of Overwhelming Experience on Mind Body and Society" edited by Dr Bessel Van Der Kolk MD, Director of the Trauma Center at JRI. It demonstrates how trauma is a somatic (body) issue.
"The issue of memory has always been central to the study of trauma. Ever since psychiatrists and psychologists have devoted themselves to the study of trauma's impact on consciousness, they have noted that traumatic memories are stored in a state-dependant fashion, which may ender them inaccessibleto verbal recall for prolonged periods of time. When traumatic memories are dissociated from other life experiences and stored outside of ordinary awareness, they may be expressed in such seemingly incomprehensible symptoms as physical ailments, behavioural reenactments, and vivid sensory reliving experiences. The reenactment of trauma in personal and social relationships is a major source of shame for the victims and is a source of ongoing tragedy in society.