Spine surgery is usually recommended when pain is unrelenting, affects your quality of life and conservative treatments do not seem to work. You may have surgery to relieve pain due to nerve compression by removing bone or a damaged spinal disc.
Heat is considered a very good therapy for pain and swelling, especially back pain. A hot bath or shower is a good way of relieving those aches without much effort. However, a lot of activities, especially bathing or showering are difficult to accomplish when you have chronic back pain.