By four or five months of age your puppy will begin to teethe. Chewing helps to relieve the pain and pressure that comes along with teething, and in fact, chewing is really the only thing they can do to help lessen the pain.
To ensure that your new addition learns healthy chewing habits from the start, provide her with lots of appropriate chew toys. Softer chews made from rubber or other flexible materials are specifically designed for puppies without adult teeth. You can also try freezing a washcloth that has been tied in a knot to help soothe sore teeth and gums. Teaching your puppy to chew on appropriate toys will ensure that the transition is a happy one for all.