hi,

I'm not sure what the exact cause of your back spasms are, but after a cervical spine fusion I get them on a daily basis, and they sure are BRUTAL!!!

Other then the obvious, narcotics, the muscle relaxers in combination with heat or ice (whatever is more comfortable for you) works, and I would also suggest a Tens unit. Just got one and OMG it's a savior for muscle spasms. My health insurance covered 80% and my physiotherapist set the dials just right for me, and I'm so happy with it. It's amazing relief for spasms.

I have tried flexeral and other muscles relaxers, they seem to work better for me with heat, even a hot shower or bath helps.

Also, trigger point therapy helps me, a good RMT can work the knots out and show you how to hit the trigger points at home with a rubber tennis ball laying on the floor.

hope that helps...
Cathie