I will never use these pain patches again. I received a free sample of Salonpas Salonpas Pain Relief Patch, 5 CT
in the mail and I used them on my lower back on each side of my spine for lower back muscular pain. The patches applied like bandages and stuck well but after about 5 minutes I got a strong cooling and heating sensation, similar to that of Icy Hot Extra Strength
and it was unbearable. I had to remove after about 2 minutes of the intense temperature and did not reapply. I felt the "icy" feeling for the next 10 minutes and was NOT pleased.