I was reading on amazon about a book that talks about a therapy for this called McKenzie.
It is much like what the above poster mentioned.
Also, some say that they benefit from getting special chairs...the kind you lean on.
Are you taking an anti-inflammatory? I'm sure this would help a tiny bit when starting any exercise program.
My understanding is that it requires diligence and that it is often a long road...but many people feel better with regular physical therapy and followup exercises.