<p style='font-size:12px'><font face='arial'>How to use Voltarol Heat Patch Tear open the sleeve, just before you are ready to use the heat patch. Remove the plastic backing then place the heat patch on the painful area, either the back, neck or shoulders, apply the adhesive side onto dry clean skin. Press firmly to make sure it is fixed correctly. The heat patch starts to heat up after a few minutes of opening. When you remove the heat patch, peel it off slowly from one corner</p>