English Springer Spaniels, like all dogs, can be allergic to a variety of things. Some dogs can develop an allergic reaction to certain ingredients found in their food, such as chicken, beef, corn, wheat, or soy. English Springer Spaniels can also be allergic to environmental allergens such as pollen, mold, dust mites, and flea bites. English Springer Spaniels can also develop atopy, which is an inherited form of allergic skin disease caused by inhalant allergens such as pollens, molds, and house dust mites. Symptoms of an allergic reaction in English Springer Spaniels can include itching, redness, and inflammation of the skin, as well as gastrointestinal issues such as vomiting and diarrhea. If you suspect that your dog may have an allergy, it's important to consult with your veterinarian for a proper diagnosis and treatment.