After heating, place the hot pack over the back of your neck; if uncomfortable, allow it to cool until it is comfortable to your touch. Wrap the hot pack in a towel or similar cloth and apply it directly around the back, or in a particular location of the back, as directed or for 15 to 20 minutes. Check the skin every 5 minutes to be certain that there is no excessive redness of the skin. Also check for any discomfort to the dog. If either is noted, please discontinue.