Try washing them again. The chapstick should come out in the wash. It probably melted in dryer not the washer the first time.

I would use one of the pre-treatment spotters on all the spots and let it set for an hour or so before washing again.

I would recommend washing them by hand, in Dawn dish soap. It took bacon grease out of my washable silk shirt! You can always rinse a second and third time in the washer.