If your dog is diagnosed with a food allergy, treatment options include:
Feed a special diet for life
Feed them a diet that doesn’t trigger their allergy (and nothing else) for life.
Try to find out what they are allergic to
Once your dog is settled without symptoms on a special diet, your vet may recommend adding ingredients back into their food (one at a time) to try and find out what they are allergic to.
If your dog doesn’t show any symptoms, this is a ‘safe’ food. If your dog’s symptoms come back after eating a certain food, it’s likely they are allergic to it. This will help you select a dog food that only contains safe foods.
Food trials and exclusion diets can be tricky and take a lot of time, the alternative is to keep feeding your dog a special veterinary diet for life.
Some dogs with a food allergy will also have allergies to things in the environment, this may cause allergic skin disease (atopy). In this case, they might improve a bit on a special diet but they may need some other treatments as well to help keep their skin symptoms controlled.
Referral to a skin specialist
Your vet might recommend your dog is seen by a skin specialist. They will be able to perform more advanced tests and give you more information.