I wonder if this helps. Let me know if you tried it...
My third tip is to bounce on a therapy ball.
Now, I know this may sound a little silly, but this simple exercise really makes a big difference for many people suffering with an L5 / S1 bulging disk.
Basically, you want to buy a therapy ball (those are the large balls that you see in physical therapy clinics, or at the gym), and simply sit on it and bounce up and down gently for 4 - 5 minutes every day.
Here's the reason this will help with the pain - the disc itself does not get very much blood going to it normally, which is really a problem because blood is what transports oxygen and nutrients throughout the body for healing. So, how does the disc get the oxygen and nutrition it needs to be healthy? Through the jelly in the center of the disc (the nucleus).
The only way new oxygen and nutrition can enter the disc for improved healing is by physically pumping the disc. This exercise allows you to do that very easily from the comfort of your home.