in my humble opinion, and in my experience, here's what I think.
This year I came down with a touch of congestive heart failure. Which means I can lay flat on a bed or I feel like I'm drowning. So I bought a recliner. Before I knew it I had terrible lower back pain. Never connected the two. (duh). Went to the chiro who is excellant. Would pop the back and for a day or two I was great. Then right back to crippling lower back pain. My brains cells started to work slowly, which is the way I am now, and I thought, perhaps if I put the foam pad from my "tree lounge" deer climbing stand on the recliner, perhaps it would help my back. So I tried it. within days my lower back stopped hurting. In fact I use the pad every night and my lower back pains have gone away. The chiro is a great person, but never thought it or recommended any changes. I'm not sure telling you this will help you, but it is what helped me.
Another thing that helps is to spray "bio-freeze" on my back. The chiro sells it and it does help. It's a lotion type stuff that goes on cool, but heats up and seems to relax the muscles.
I can't take flexiril as it messes up my bladder. Pain pills mask the pain, but don't seem to fix anything.
VO is comforting.
What would really help is I were to get off my fat butt and walk everyday, do a few exercises, and loose some weight.
But that seems excesive.