pain
"I have upper neck pain and middle back pain from an auto accident.  By stretching the patch with help from my husband to put it on it stays put all 12 hours covering both spots of pain.  I work at a computer for most of my working days without the patch my neck is aching very badly by the end of the day, so putting it on before work prevents the pain at the end of the day.  My doctor advised me to use it as a preventative and it does do the job."