Hello, Lower back pain can be caused by a variety of problems with any parts of the complex, interconnected network of spinal muscles, nerves, bones, discs or tendons in the lumbar spine. more likely its back pain from the disc space lumbar disc herniation. Ceasing activity for a few days allows injured tissue and even nerve roots to begin to heal, which in turn will help relieve lower back pain. Heat and/or cold therapy helps relieve most types of low back pain by reducing inflammation.There is no permanent cure for this problem. Physiotherapy helps leading reasonably good life .