Do NOT give your dog raw hide chew toys. At least not unless you want to babysit your pup to make sure they don't swallow it whole once they soften it up. Yes, I've had to make my dog regurgitate a raw hide chew because of this.
These are much better, they break up into smaller pieces that can be be digested.
http://www.animalworldnetwork.com/smokedpigears.html