You can also use pre-packaged alcohol wipes to get Sharpie off a whiteboard.

If the whiteboard feels sticky from the hairspray, wipe it with a damp rag.

Lightly scrub at the marker residue, but don’t press down hard since you could damage the coating on the whiteboard. [8] X Expert Source Eduardo PeraltaHouse Cleaning Specialist Expert Interview. 29 October 2021.