If your dog is exhibiting signs of allergies, contact your veterinarian. Once you arrive at your appointment, the doctor will ask questions about his symptoms and when they began. He will also want to know about his environment, lifestyle, and diet.
Your veterinarian may then perform laboratory tests, namely blood work, urinalysis, and biochemistry profile. This will show the veterinarian how your dog’s organs are functioning and will tell him any information he needs to know concerning any underlying illnesses, if any. Upon looking at your dog’s coat and other symptoms, and listening to you describe the symptoms, your veterinarian may suspect that your dog has allergies or an intolerance to a specific type of food.
He may then choose to do a skin test or other type of allergy test on your dog. This will give your veterinarian more input as to the type of allergen that is affecting him. If your veterinarian suspects food allergies, he will suggest a diet for your dog in order to find the offending allergen. This will also help him diagnose intolerances to any chemicals within foods, such as proteins.
He may suggest a specific diet for your dog for 12 weeks. After that period of time, he will want you to slowly introduce foods back into his diet. He will want you to watch for any symptoms to occur once the foods are introduced one at a time. For protein intolerance, this will take time to diagnose, as he will need to figure out specifically what is affecting your dog.
There may be another type of test for intolerance to protein, known as a saliva test. This test is based on your dog’s saliva. The igA and igM antibodies are produced to fight any sensitivity in food, and this test measures the levels of these antibodies.