Hi Kathy,
It is more common to have environmental allergies the food allergies . As i understand it ,characteristics of food allergy are signs starting under 1 year of age, Itchy butts and ears, Skin signs combined with GI signs like more than 2 stools a day and “sensitive stomach” make food allergy be more likely than environmental. Itchy paws alone may more commonly be environmental signs. Some dogs have both.
Parasite or bacterial or yeast infections and contact reactions can also cause itching. Best place to start is at your veterinarian. There are no accurate tests for food allergy. Very specific diet trials are used to diagnose. Additionally, testing for environmental allergies is done to select which allergens to include for desensitization, not to diagnose allergy.
I believe that there are foods in the Pro Plan line formulated for skin support.
