For chronic back pain I always suggest my patient Don t treat pain but evaluate the cause for pain and do treatment for it. Here in your case also I suggest to do MRI of entire spine as well do blood report to rule out ankylosing spondylitis also. Here as per report you will come to know the cause for your pain. If there is major damage to spinal disc with loss of curve, orthopedic doctor will suggest for surgical correction and then physiotherapy to increase strength of spinal muscle as well to reduce inflammation in soft tissue. If there is no major damage in MRI report means it can be treated with conservative management. Here you have to take some basic medication and physiotherapy treatment for pain and inflammation. Along with this spinal exercise will help to improve strength and stamina of spine. Here using hot and cold pack at home will also help for some more pain relief. One more thing if it get diagnose with ankylosing spondylitis then treatment with anti inflammatory medication along with stretching and flexibility exercises will help. Now here I have given you general idea for chronic back pain. You can follow it step by step to have good relief. Take care.