My father was an OB/GYN. One of the things he focused on was lower back pain in his patients. What he found was that 95% of them got great relief simply by taking hot sitz baths 3-4 times a day (10-20 minutes) - has hot as you can stand it - and more often if you have the time to do it. Some got relief from just one or two days! His finding was that they had urinary tract issues and by soaking the lower region things relaxed. Sadly, I don't recall what the EXACT diagnosis was, but I can't tell you how many people I have suggested this to who found they got long-term relief and simply repeated the sitz cycle if the pain returned. I hope this helps someone.