Who Has Allergies by Dr. Teri Musser, DVM Canine allergies are a lot like human allergies - dogs can react to things in the air, in their food or on their skin. Learn to recognize canine allergy symptoms, then provide your dog with needed relief. Look for allergy symptoms in your dog. The most common signs of an allergy to inhalants or fleas are frequent itching, chewing and biting, especially on the tail, the stomach, and the insides of the hind legs, as well as licking and chewing the paws.
Inhaled allergies can also result in sneezing, coughing and watery eyes.
Vomiting and diarrhea are usually symptoms of food allergies. Hives and rashes can be symptoms of various types of allergies. Flea allergies are most prominent during the flea season. Take your dog to a veterinarian if you observe any of the above symptoms, especially vomiting or diarrhea, as they could be caused by a more serious underlying medical condition. If you suspect an allergy to food, realize that typical canine food allergens include corn, beef, dairy products, wheat and soybeans.