Erase Sharpie Marks on a White Board. Step 1: Oops...Oops! You just used a Sharpie on your White board instead of a Dry Erase Marker. Step 2: Draw Over Sharpie Writing With a Dry Erase Marker Scribble over the Sharpie Writing with a Dry Erase Marker. Step 3: Wipe Off! Wipe off ...