If you suspect your dog is having an allergic reaction to a specific food, namely peanut butter, make an appointment with your local emergency veterinarian before it becomes too severe. If you are unsure that your dog is having a peanut butter allergy, your veterinarian may choose to perform specific types of tests in order to come to a definitive diagnosis.
For many types of allergy symptoms, veterinarians tend to wait on specific allergy testing, but if he knows that you are feeding him peanut butter from time to time for treats or in order for him to take any medications, he may want to go ahead and perform an allergy test since a peanut butter allergy can turn into a severe situation, such as in anaphylactic shock.
Your veterinarian may perform blood testing, urinalysis, and biochemistry profile to rule out any other underlying illnesses. He will also ask you a variety of questions about your dog’s diet, agents in which he comes into contact with on a regular basis, how often he has an allergic reaction, and any other questions that will help him come to a diagnosis.
Your veterinarian may choose to do a skin test on your dog to identify a specific allergen, or perform a type of allergy test on your dog which includes a tiny amount of a specific allergen, in this case peanut butter, to your dog’s skin. Your veterinarian may also choose to do blood testing to determine this type of allergy.