Is this achievable? Start by observation of any itching of your dog. There is a reason for your dog's itching. Close observation of the area may find fleas, or some irritated area. Cold water and shampoo may well be all you need to do to heal the itching before it becomes a problem.
With the correct diet, regular exercise, routine health exams with the vet and decent cleaning of the environment of the pet, allergies may never happen. With so many possible causes of dog allergies, it is the responsibility of the the pet-owner to keep his dog healthy and clean.
What does well-being of the pet mean?
Well-being of your pet means a decent well balanced diet, regular exercise, and routine health exams with the vet. Check that all of their shots are up to date. For some breeds, routine brushing and observation of the coat and skin can also forestall dog allergies from happening.
If you see that the pet's bed is not perfectly clean, clean it with gentle soap and let it dry completely before allowing your dog to sleep on it.
Continually clean and change the bedding of your dog. Be sure to do this more frequently during the warmer months when the reproduction of the fleas are at their peak. Keep the dog away fromareas with a high pollen count and away from chemicals. Dealing with dog is almost like dealing with a small child. Make sure that the dog can't get into things that may be toxic or irritate the skin. Puppies are just like little children, they are liable to get into anything that is left around.
Allergens are everywhere. Just check that your pet isn't in an environment where allergens are abundant. You would do this for a child; do the same for your dog.