No product needed. He's starting to teethe and is chewing what he can for relief. Here's what I've found works best.
Take a cotton dishtowel, dip it in chicken broth (low sodium if you can find it, or just dilute it) and stick it in the freezer. The cold will numb the pain in his gums and the chicken broth will make it his absolute favorite chew toy. When he's done, have another in the freezer so he's always got one to gnaw on.
He'll have his adult teeth fully grown around six months. For an added precaution, you can always spray a little bitter apple on the bush if you can't keep an eye on him constantly. Don't chastise a puppy until you know how to teach it the meaning of the word "no".
This does NOT involve raising your voice or intimidation. I will be writing a hub on champion training techniques (based on "marker training" if you'd like to do some research) for puppies up to two years old that involve no force, fear, violence or punishment whatsoever.
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