I'm just wondering, if youve had long term lower back ache stiffness, how do you treat it or manage it?

Physical : Therapy can help substantially.

Back pain: The back pain can be caused by muscle strain, spinal stenosis, ruptured disc, nerve impingement ... The treatment depends on the cause of the pain. It might include heat pads, exercise, massage, physical therapy, medications, injections ... You should seek help from a pain management doctor. You might benefit from a comprehensive evaluation and treatment.

Exercise: Most long term backache patients do well with a good home exercise program. After evaulation by a doctor, you can be taught safe exercises by your doctor or by a physical thetapist.