I was at my Buddhism and psychotherapy study group recently. One of the psychologists said that some trauma can't be healed; it will leave a permanent mark in the psyche that never can be eliminated. Others expressed more optimism about healing trauma.

Like most of the dichotomous arguments, I say both are right. Severe trauma leaves a mark. But, treatments can significantly reduce the impact of the trauma and assist the nervous system in returning to a less reactive state. The over-active nervous system (associated with trauma) can be soothed, with the trauma-energy being dissipated. More to come on this.