Ask a PT Repsonse: "I usually use the Respond handheld stim unit and cut the TENS electrodes so they are small circles and place them in the areas as per the chart.  I sometimes need to use a little tape to keep the electrodes in place and sometimes need to move them around quite a bit before I get any contraction, then usually keep it there for 5-8 minutes depending on the contraction.  When I can't find a contraction, I usually leave the estim on so that there is some feedback into the facial muscles.  I will also do some STM to the affected side of the face with lotion in circular motions and teach the patient to do this frequently throughout the day."