As someone already suggested WD-40....
My granddaughter left a purple and red crayon in her pocket and of course it got washed and dried in her clothes. Mom brought me the whole load, I sprayed them with WD-40 worked it in a little, along with some laundry soap and the washed them a few times. EVERYTHING came out, not even a hint of crayon left. Had to wash them several times to get rid of the smell. I'd use the WD-40 in the dryer too. Spray some on paper towel and then wash off well.....
Good luck!!
Renee