Unfortunately the change in seasons (which triggers blowing the coat) is also a time when many seasonal allergens are in full force. Our IW and Tibetan Mastiff both have allergies. We had them both tested last spring for allergies. Cody the TM is allergic to Florida and Max is severely allergic to dust mites, mold, fungus, etc. We ordered the allergy serum, specific to their allergy triggers and have been giving it to them in injection form since July. Cody now gets his monthly and you would never know he had any allergies at all. Max on the other hand still itches some, no raw spots, bare spots, but still licks and chews some. He is still getting his shots weekly and taking Elavil. The vet and Hesca seem to think it may take longer to work for him. Poor Cody blew his coat (first time for me with a TM) and looked like a bald mutt. He had no guard hair left. No britches, plumy tail, ruff, nothing. My husband joked that if I had seen him like that we would never have gotten a TM. I was too stupid to know that wasn't normal. Anyway, he has his full undercoat back, guard hair is back, britches, ruff, plumy tail and all. Our Springers lived on prednisone, due to their allergies. I just wanted to check into other options for Max because of his age. Good luck with your baby.
Kathy