My friends,
PLEASE PLEASE be careful with the heating pads. Not too long ago I fell
asleep with one on my back and ended up with 3rd degree burns on my back.
I've since learned that if you must use the old fashioned electric heating
pads use them for 15 mins on and then 30 mins off no more than 5 times a day
or you risk burns to the affected area.
However, there are new fangled water circulated heating pads that are
available by prescription that not only can't burn you but work better. Ask
your primary care physician or your pain management clinic.
I hope this helps.