Any remedies for painful lower back spasms? I've gotten them off and on the last few weeks, but last night took the cake.

It's always in the same spot, and I'm doing everything I should as far as sleeping with a positioning pillow...on my side...staying hyrdated, etc. But when the spasms start, nothing I do seems to make it go away. I barely got 2 hrs of sleep last night because of it. The only position that was remotely comfortable was when I laid on my back with a cold ice pack on the spot, underneath me.

Any other ideas/remedies you've found to work? I'm terrified to go to sleep tonight!