It could be a food allergy. My B&T itched a lot, even as a puppy. Her full coat never grew in, because her nails were always scratching her coat and cutting off her hair. I finally took her to a dermatology vet. We are still doing food tests, but she is allergic to some foods. She is now eating a dog food from the vet made of rabbit & potato and the itching stopped all together and her coat started to fill in. I am in the phase of food testing where I give her back certain of the old treats to see exactly what she is allergic to.
Charleen and Cav's: Pippin (ruby male), Merry (b&t female), Luke (blenheim male) & Jolly (tri male puppy)