My recommendations for fixing back pain or a slip disc.
1. If you are a man, get a smaller wallet, don't be sitting on a thick wallet.
2. If you are in a crappy job that annoys you, then quit or get fired. Some back pain is psychosomatic.
3. Lose about 20 pounds. (I was in great weight lifting shape, but had kinda of looked like a line backer.)
4. Yoga
5. Running
6. Standing desk
4 and 5 are free. The medical industrial complex can't make money by telling you to go to yoga or run. They would rather preform surgery or give a patient drugs. Unfortunately, people take the easy route.
I have been free of back pain for nearly 14 years. Sure some of it comes back here and there but it goes away with stretches, exercise and proper sitting / standing awareness.