Although uncommon, dogs have been known to suddenly develop food allergies even when they have eaten the food for a long time. Food allergies in dogs can manifest at any age. The symptoms of allergies in dogs, especially food allergies, can be very similar to skin allergies. Therefore, the cause of such a dog allergy might sometimes be challenging to unearth.
Once you find the allergen causing the dog allergy and eliminate it from your pet’s diet, you can expect their condition to improve gradually and symptoms to decrease. The allergen may take around eight or more weeks to exit your dog’s body entirely.
You can have your dog tested for any allergies via skin (intradermal) tests and blood tests. These tests help ascertain the type of allergy your dog may have and allows the vet to prescribe proper medication and treatment for your dog’s allergies.
The probability of dogs between the ages of one to three years to begin exhibiting symptoms of allergies, if any, is higher. However, even young puppies over six months of age and seniors can also start showing signs of a dog allergy.