Please. I used a neck heat wrap, the kind you put ihn microwave that has a gel inside. My neck is very sore. the wrap comes all the way around to the font of neck and has Velcro closure. I needed it quite hot to help soothe neck muscles. Well, after I left it on for a while, I removed and felt sore on right side espeically, and i see redness below ear, perhaps slighlty behind ear, but still near ti.. i do noto care aobut discomfort, i JUST WANT TO BE SURE THAT MY CAROTIDS WERE NOT HARMED IN THE PROCESS. WAHT DOES THIS SOUND LIKE TO YOU, PLEASE? Thank you.