Skin allergies are very common in Golden Retrievers and the offending allergens are numerous – a flea bite, airborne pollen, dust, mould, food. Symptoms can range from constant biting, licking and scratching to constant, chronic ear infections. In many cases diet can play a large role in the allergic dog. If you suspect you have an allergic animal, consult with a canine allergist to determine the actual extent of the problem. Allergies coupled with low thyroid levels are commonly seen and it is often worth testing for the other if you see the one in your dog.