My son likes to chew on his hands (I assume its because his whole smile is trying to come in at…

My son likes to chew on his hands (I assume its because his whole smile is trying to come in at once) but he likes to drag his face and chew on his hands while trying to crawl. He has really strong legs and makes it all the way around the bed like that but he complains as he does it too and he can't see where he's going... I've tried toys and trying to pull his hands out of his mouth ... do any other moms have any suggestions on how I can help him keep his head up and not chew on his hands... He has a binky he chews on like that sometimes but he still keeps his hands at his face