Trying the Lidoderm patches again

I'm having trouble numbing my lower back long enough to lay down and get to sleep, so I'm revisiting the Lidocaine patches again. Anyone else have any success with these? Worse thing about them, is they're cold! BRRR!

I use them for back, arms, and feet. My biggest problem is getting them to stay on for a full 12 hours. They are nice to have in my arsenal to attack the pain associated with CMT.

I agree NoWittyName, short of duct tape, I don't think there is a way to keep them where you put them!