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Try again. Wyatt may have developed concurrent food allergy dermatitis, so a hypoallergenic diet trial (and not serologic testing) might be a consideration. Serologic IgE testing for the diagnosis of food allergies is not accurate. Dog's with nonseasonal should undergo one or more hypoallergenic diet trials ideally followed by dietary provocation. And repeating serum allergy testing for regional allergens is not indicated at this stage because Sarcoptes species infection can cause false positive reactions to dust and storage mites, so it should be ruled out first.