Some commercial products designed for preventing pets from chewing on wood furniture, and from chewing, licking and scratching wounds and bandages.
One "do-it-yourself" strategy is to create a cayenne pepper spray. One chew deterrent pepper spray recipe involves mixing 1 - 2 teaspoons of ground cayenne pepper to a quart of water. This solution can then be poured into a spray bottle an sprayed on objects you don't want your animal to chew.