Have you tried to figure out what is different between the home your dog came from and your home? Food? Carpeting? Inside plants? Cleaning products? Hopefully, it might be something as simple as that (though carpeting might not be such a simple thing to change).

I have two dogs that have developed an itchiness that I cannot quite track down. Steroids are an easy way to lessen them, but they just hide the real problem and can have unwanted side effects. Plus steroids don't address the bacterial problems associated with the skin that is being chewed.

Right now I am about a week into giving them Yucca Intensive -- touted as being a natural steroid. I mix one drop for each 10 lbs in some water or broth, then pour it on their food. Yucca cleanses the liver and kidneys, promotes blood flow and tissue repair while preventing further degeneration of injured tissues. Reduces the "itch" of allergies.

They are scratching less and their skin is looking better. I am pleased so far. It's natural, so it will take a bit longer than synthetic drugs. Maybe it will help your dog.