How do I grasp infirm dry erase signpost past its sell-by date a dry erase board? We have a dry erase wall, and kids own written a lot...

We have a dry erase wall, and kids own written a lot of things on it next to dry erase markers. We want to bear the markings off but some of it is species of stuck... Do I use vinegar? Nail polish remover (what if that takes rotten the shiny layer??)? What do you recommend?