Disc Decompression is frequently used to treat back or neck pain (or sciatica), bulging or herniated disks (or degenerative disk disease), worn spinal joints, or injured and diseased spinal nerve roots. Spinal decompression works by gently stretching the spine. That changes the force and position of the spine. This change takes pressure off the spinal disks, which are gel-like cushions between the bones in your spine, by creating negative pressure in the disc. As a result, bulging or herniated disks may retract, taking pressure off nerves and other structures in your spine. This in turn, helps promote movement of water, oxygen, and nutrient-rich fluids into the disks so they can heal.