My T is basically eclectic, but has done a lot of training in Somatic Experiencing. I'm not sure it's a particular theory that made the difference but just the way she has known how to be attuned and steady. I'm not sure that can be taught. But I do think the SE training helped her because she wasn't afraid to touch me. In the beginning she didn't because I was afraid for HER to touch ME. But eventually I would ask her to sit next to me, or put her arm around me and that made a big difference.

My T doesn't do IFS at all, but I learned a lot about it and have done a lot of IFS work with myself and I think that helped tremendously. Usually I just divide a page into two columns and have a dialogue with whatever part of me is causing trouble, or sometimes it has to do with imagining in my mind taking care of whatever part of me was hurting.

In the beginning I had this baby part of myself that was so distressed that I would literally be putting my hand over my chest (where I felt it) and making soothing noises like you would talk to a baby. I felt insane but it was seemingly the only thing that helped at all.

IMO, healing from this stuff can take some creativity and persistence in addition to a great T.