No, it is not okay to use physical punishment to stop puppy biting. Physical punishment can cause more harm than good and can damage the trust and bond between you and your puppy. Here are some reasons why physical punishment is not an effective or humane method for stopping puppy biting:

1. It can cause fear and aggression: Physical punishment can cause your puppy to become afraid of you and may lead to aggressive behavior. This can make the problem worse and can put you and your family at risk of injury.
2. It can damage the bond between you and your puppy: Puppies learn best through positive reinforcement and building trust and bond with their owners. Physical punishment can damage this bond and make it more difficult to train your puppy.
3. It doesn’t address the underlying cause of the behavior: Puppy biting is often a normal behavior that is a result of teething, exploring, or playing. Physical punishment doesn’t address the underlying cause of the behavior and may only temporarily stop the behavior.
4. It can lead to other behavior problems: Physical punishment can cause your puppy to develop other behavior problems such as fear, anxiety, and aggression.
5. There are more effective methods available: Positive reinforcement and redirection are much more effective and humane methods for stopping puppy biting. These methods focus on teaching your puppy what behavior is acceptable rather than punishing them for what is not.

In conclusion, physical punishment is not an effective or humane method for stopping puppy biting. It can cause fear, aggression, and damage the bond between you and your puppy. Instead, focus on positive reinforcement and redirection to teach your puppy what behavior is acceptable. This will help build a stronger bond and trust between you and your puppy, and will ultimately result in a well-behaved and happy furry friend.