Look into EMDR therapy
EMDR Institute, Inc. - What is EMDR?
I hit a bad patch in my late 30's dealing with some PTSD stemming from some childhood traumas. My therapist and EMDR saved my life, no doubt. Find a provider in your area that practices it. It is rooted in science and deals with re-processing traumas in a way that will allow you to live with the anxiety.
I keep a xanax for emergency panic attacks that I can't stay on top of, but like was posted above, I can keep a 30 day supply for 3 years.
Good luck and PM me if you need more info on EMDR.
Sean