Prolonged exposure, delivered by somebody who is experienced in doing so and has been supervised in doing so, tends to be probably the most robustly supported treatment for post-traumatic stress disorder. There are also cognitive processing therapy and EMDR. There can be dialectical behaviour therapy. Those are the ones that are the therapies after the fact, so when they are appropriately implemented by someone who has the appropriate skill set, those are evidence-based solutions that are supported by the research evidence to provide reductions in PTSD symptoms.
On March 22nd, 2016. See this statement in context.