[anonymously]

Dermatology – Common Issues

“Atopic dermatitis is a hypersensitivity or over-reaction to a variety of commonplace and otherwise harmless substances in the environment such as plant pollens, house dust mites or mold spores. Most pets with atopic dermatitis either inhale or absorb their allergens through their skin. Allergy tests are used to identify what a pet is allergic to in their environment”.
excerpt below from: http://www.2ndchance.info/Apoquel.htm
Food Allergies are probably over-diagnosed in dogs (they account for, perhaps 5-10%). Hypoallergenic diets are occasionally, but not frequently, helpful in canine atopy cases but you should always give them a try. Food intolerances are more common – but considerably more likely to result in digestive disturbances and diarrhea than in itching problems.

The best choice would be to see a board-certified veterinary dermatologist, if one is available near you (here is a list: http://www.acvd.org/).

My dog was tested for environmental allergies by a dermatologist and has responded well to allergen-specific immunotherapy. We didn’t do the blood test for food allergies. As food sensitivities tend to fluctuate anyway.
I would never consider any mail-in saliva or hair test. Most people complain that their dogs test positive for everything!

I assume you have checked via the search engine here /forums/search/allergies/