I'm completing a psychoanalytic training program right now. There are lots of good things that can happen as people rebuild a self through the process, but you need an analyst that has training and experience in trauma and modern psychoanalytic theory that integrates current understanding in neurobiology. Not all analysts can or are willing to do this. Some stick strictly to the old ways, and that can be bad for a person with trauma who needs help with containment and learning to self-regulate. Another option instead of analysis is to find a therapist who uses psychodynamic theory and has experience doing long-term therapy with truamatized clients.