Lip Injury From Dog Bite

My puppy bit a smallish (not tiny) chunk of my lower lip... The flesh that was bitten off sort of hangs on top of the wound. It's really swollen & hurts:( The injury wasn't deep enough to require stitches but now there's a hole in my lip! How does lip skin heal? What can I do to aid healing? Will the hole fill up as the wound heals? Or will it have a dented appearance? And if so, what can be done to bring it up to the height of the surrounding skin? Is there such a thing as topical augmentation?