I have MPD, depression, anxiety, borderline traits, and PTSD... I have to go through the memories all of my alters hold of the abuse. I have to go through them to heal because I've never really dealt with them, or let them come to the surface - I just stuffed them down or let another take them for me. By letting them come out, and having my therapist show me that what happened was not my fault, and helping me with my negaitive self talk - I will heal.
So, I do believe to some extent, you will have to deal with the memories. My PTSD comes through with nightmares and triggers - which ease when I let out memories, maybe it will be the same for you?
It's not easy - and it's a very long process - and very painful - but wounds will heal if you allow them to help 'clean' the wound.