Inversion tables (http://amzn.to/2xKqdbM ) can be extremely helpful for spinal pain, especially low back, when used properly. If your table does not come with them, place cushions under your knees, behind your low back and under your neck. These greatly increase your table's effectiveness. Most commercial tables come with a strap so you can limit how far back it goes. I recommend setting this for 45 degrees. Begin with 20 to 30 degrees for 15 to 30 seconds and progress to 45 degrees for 3 to 5 minutes. You can repeat your treatment multiple times daily as long as it's comfortable.
As demonstrated during our seminar, you can create a homemade inversion table with a piece of 1/2" or 3/4" plywood. You only need it to be about 5 to 6 feet long and about 18" wide. Prop the top of your plywood against something immovable like a heavy sofa with the other end on a carpeted area where it will not slip or slide. The angle formed with your plywood and the floor should be about 20 to 30 degrees. Cushion the top of your plywood with a large folded towel or blanket and cover your cushion and plywood with another large towel or blanket. Lie on your back with your knees over the top and your head towards the floor. Begin with 15 to 30 seconds and progress to 3 to 5 minutes one or more times a day.