DD has black white board marker pen marks all over her school uniform (sweatshirt). I've been searching and a thread back in 2009 said Dylon Stain Remover for Greasy Stains worked but I think it's been discontinued.
Anyone with any clever ideas? I've tried hairspray but the sweatshirt was already wet (initially tried hot water and bio washing liquid) and it had no effect at all (supposedly the alcohol in it works).