My husband 's xray shows straightening of the lumbar spine, with pain from his left buttock down the foot.anti-inflamatory was useless.what's the cure?

Back Pain: Straightening of the lumbar spine indicates spinal muscle spasm. If there is associated pain (or numbness) that radiates to the foot, a herniated disc is a possibility. Depending on the duration of symptoms, a lumbar spine MRI may be indicated. If symptoms have been present for 2-4 weeks, physical therapy and anti-inflammatories can help. If greater than 4 weeks, would consider MRI