Hello Loose rivets,
I have had a slipped disc at the L5/S1 level for years now. Combined with flying a 737 was not always the easiest thing to do.
I have tried various treatments which have made life a bit better:
* Inversion table. Available at relaxtheback.com in the USA. It decompresses the dics. and you can do it at home when it pleases you. The cost: about US$300
*Swimmimg. It streches your spine.
* I tried a treatment in the US some years back called VAX-D. Look it up on the net. It was expensive and didn't anything more than the inversion table does.
*Sleep on a waterbed or a "Tempur" mattress. A waterbed especially is heated and keeps you back pretty toasty all night long.
Good luck,
Mary