I couldn't get to sleep last night because my knee and hip were aching and burning so much. And I take ambien and baclofen. I haven't slept well for days either. So after three hours, I got up and took three advil. I do not like to take it because it also upsets my tummy and I had ulcers in the past. So eventually, I manged to fall asleep and woke up a few hours later with a charlie horse in my calve. I haven't found the salonpas to be very effective. I may ask my pcp about the lidoderm patches.