Carbona is a stain remover that comes as a general stain remover and as individual stain removers called "Stain Devils". They can usually be found at WalMart. The individual Stain Devils come in smaller yellow bottles sort of triangular shaped. There is one for pen and crayon. I have used these Stain Devils for a variety of stains, many of which have gone through the dryer. I certainly don't know if this will work but it is worth a try. I have never seen any damage to the fabric where I have used it. This is just another alternative, many of the posters here have listed very good ideas.