I am a firm beliver of holistic medicine in conjuction with regular vet care.. may I suggest that in the meantime while you find a good dermatologist for the pup you can use a natural product call calm coat, I saw a great improvement in a dog that goes to the same holistic vet I take my dogs to. It might be a long shot but I guess it would be worth to try if it can help your baby..
you can check the product at..
Calm Coat
Best of luck and hopefully you will find what is wrong with your baby very soon..
hugs,
Carmen in nj