Hi,
I wouldn't bother with the other treatments including the traction. They would only be for short term relief only.
Traction is not going to "get something back in". What is out in the first place?
Peter O'Sullivan's work showed quite clearly that the active approach is the way to go.
All the other modalities are ok but don't contribute to the solution. These would have been included in his control group (usual care from practitioner).
But specific stabilisation exercises are the way to help these people. That is why his study was published in Spine - A journal for spinal surgeons.
BTW, what do you consider core exercises to be???