Lower back issues | Model Engineer : vimarsana.com

I went down with what I eventually discovered was ankylosing spondylitis (AS) when I was 18, or therabouts. I m now 78.
Diagnosis was confirmed when I was 38, and I was put on mefenamic acid/ponstan (an NSAID - Non Steroidal Anti Inflammatory Drug) for pain relief. Ultimately, the drug, although good at pain relief, affected my stomach so I m now on lansoprazole for, I think, acid reduction, and no more NSAID s. Fortunately, after about 40 years of intermittent pain, stiffness & sciatica, the AS burnt itself out and no more pain, just a permanent stoop.
One thing I did discover was that hot baths seem to help, and sleeping on my own in a single bed with sheets & blankets tucked in, ie like a sleeping bag, is also helpful. I can only assume that in both instances any coldness is being dissipated before it gets to my lower back.