Griz, the best thing to do with ANY flap laceration is to flop it back where it's supposed to be. We call that a biological dressing. You might flush it with clean water first, if you have it, and if the patient can stand it, that would get all the bacteria from the bear's filthy mouth/claws rinsed off to reduce infection. Secure the flap in place with gently wrapped gauze or an IBD or a torn-up shirt, whatever you have on hand. Give him antibiotics and pain meds, if you've got 'em, and get him to a hospital asap.
