I have no personal experience of PTSD but a member of a mood disorders therapy group that I used to go to does.

She reported that a combination of Trauma-Focused Cognitive Behavioral Therapy (TFCBT) and Eye Movement Desensitization and Reprocessing (EMDR) helped her with her PTSD.

She stressed that, in her experience, it is important to find a mental health professional who has a track record of using TFCBT and EMDR when working with clients who have PTSD.