Candybear,
I'm sorry about those triggers. They are mean and sneaky and decieve us into thinking we are 'back there'.
I've posted a few times about my psychologist's therapy so I hope I am not yakking on too much about it, but it is so helpful. She uses guided imagery and the results are truly amazing. The first one we did was just going to be about general anxiety, but I chose to use a triggering image that has haunted me for so many years. The gist of it is that in one session, using one guided imagery exercise (which in NO way means you have to re-live the experience), flashbacks of that image have come far fewer times and with much less 'power'. It was really amazing and if she had told me before we started how it would turn out, I wouldn't have believed her! I told her that and she said she knew that and that is why she just gently suggested it and didn't talk about the outcome.
I wish the same success for you, by whatever method works best for you. For me, this guided imagery is so interesting, relaxing, and really kind of fun!
To answer your last question, I am still new to therapy, but I think that the more you learn the better it gets and, no I don't think it is forever. It is just till your mind finds a way to process it so you can get past it.
I hope you have wonderful days ahead!
ECHOES