To be on the safe side I wouldn't give pasteurized or unpasteurized honey to a young puppy, since the botulinum spores are harmful to young puppies with immature immune systems. I'm not sure the exact date when it would be safe to give honey to a dog. Local unpasteurized honey is the best honey to give a dog for environmental allergies, since the pollen in the honey will desensitize your dog to the allergens. The best honey for sickness is Manuka honey with a high UMF factor of 15 or higher. That's great to rub on sores on the skin or to give orally to a dog with kennel cough.