A good chiropractor would have had you doing all three of those listed. We do it everyday.
That's great, however, some can't wait to shuffle through 100 chiro's just to find one...
Moreover, I did not get anything of substance from the chiropractor that I was seeing. The decompression table they used was the drx version and it was decent, at best. I started using Grunt's protocol about 3 weeks ago and have had WAY BETTER success for my injury than 3-4 months of trial and error. His method, along with PT, has been my stellar road to recovery, but still a ways to go.
I originally injured mine about 8 years ago, stopped doing deads and heavy squats for 13 months, and the pain went away. So, i started lifting heavy again, and, actually, went 2 years with very heavy lifting and no pain. Just one day in January, I started having pain again. This time not as severe but constant (the first time 8 years ago, I could not move both my legs for 45 minutes the pain was so intense, and broke me out in a watery sweat)
The disk, from research, never FULLY HEAL, but the fluid can be sucked back in enough, along with core strengthening, to get you back to lifting serious weights.