text: TRY RUBBING ASTRINGENT ON HIS NECK. ONCE IN THE MORNING AND BEFORE HE GOES TO BED.  IT'LL CLEAN THE SWEAT FROM HIS NECK FROM HIS DAILY ACTIVITIES AND DURING SLEEP.  SUAVE ASTRINGENT IS WHAT I USE, BUT MOST OF THEM ARE PRETTY MUCH THE SAME. THEN USE A 100% PURE COCOA BUTTER STICK TO CLEAR UP THE MARKS. ITS INEXPENSIVE AND IT WORKS!