I agree that there are psychotherapists out there that do not do their job well and can actually do more harm than good.

However, there "are" good therapists out there that actually "do" help their patients. Each person is different depending on "what" caused their PTSD and what their personal history is too. While PTSD does affect the entire body, it often challenges the emotional part of the brain leaving the person struggling dealing with emotional challenges whether they want to or not. We are, after all "emotional beings" and our emotions are an important part of our survival as a species.

Therapy is not about re traumatizing. However, often as doglover is saying, while it can be very hard at first to trust enough to finally get help with sorting out our emotional challenges, it can lead to "healing' and improving ourselves and the quality of our lives.