Dr Allen's treatment with devices and treats lower back at the level of 8 to 12 thoracic vertebrae and/or lumbar. It works in the following ways:Relieves symptoms naturally, without resorting to medication. Improves nutrition of intervertebral discs. Provides a long-term treatment for the cause of pain, not just the symptoms. Promotes the healthy functioning of the lower back area. Up to 100% effective. Visit us for more help & advise.