My dad is a veterinary dermatologist, and I work for him, so we deal with allergy dogs all day! lol So naturally I am curious......... Are you working with your regular vet or a dermatologist? I highly recommend going to a dermatologist since they specialize in skin disease. Going to a specialist from the start will end up saving you a lot of time and money. Unfortunately there are not many dermatologists here in the U.S., (less than 50 I believe; there are just 2 here in washington) so finding one could be difficult. We have several clients that come from other states, and even Canada.
What kind of test did he have done?? We do intradermal skin testing, where we inject 60 different allergens under the skin and see how the dogs react to each. It tells exactly what they are allergic to, and how extreme the allergy is. The results are immediate. If Jasper had a blood test done I advice you to seek out a dermatologist (if you arent dealing with one already) because allergy blood tests are extremely inaccurate. Although, Im pretty sure they will at least tell you if allergies are present, so as you said, since he had no positives at all then he probably doesnt have inhallent allergies.
As for food allergies, the only way that I have ever heard to test that is by doing whats called a food trial. There are special foods you can only get from a veterinarian that are made for testing food allergies. They contain ingredients that are not found in regular pet food. (For example there is one food with kangaroo meat). Food trials generally last 3 weeks (some vets go longer but its not necessary) and if the dogs symptoms/itching dramatically reduce then you know they have a food allergy and the next step would be to slowly test different foods to find exactly what foods they are allergic to. What method are you using???
Good luck with Jasper! Hopefully it is just some food he is allergic to- inhalent allergies can be a major pain in the butt to control/treat! :P







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