[MyDearSam]

Some dogs will chew out of sheer boredom, some from anxiety. Based on his age, your poor baby is more than likely teething. You will have to teach him what is appropriate to chew, and what isn't. If you catch him nibbling at something he shouldn't, remove him from the area and give him something that is okay to teethe on. And praise him!

Cold baby carrots are a good idea. It's a healthy snack, and the cold will feel good on his gums. Stay away from anything rawhide. Some people give their pups bully sticks instead.

The main things are supervision, redirection, praise, and reward. He'll catch on quickly if you are attentive and consistent. If you can't supervise him closely, make sure that you have an area that you can confine him to that he can't be destructive or get hurt. An exercise pen is great for this, or a bathroom with a baby gate. These will also help with potty training him!