Massage and water therapy
Massage therapy is a proven method for alleviating lower back pain, and can also improve sleep and lessen anxiety and depression (which sometimes accompany pain). Some insurance plans will cover massage therapy.
Another treatment option is water therapy. In addition to the physical therapy benefits, water therapy has the added benefits of relaxation and sensory alterations due to water temperature and hydrostatic pressure. It also reduces pressure on the joints of the spine and allows for further range of motion.