This might be an indication that your pet might be suffering from a condition called, flea allergy dermatitis (FAD). The most common allergy that animals have is flea allergy dermatitis. It is caused by the fleas' saliva, which your pet can develop an allergy to, as there are 15 different allergens in their saliva. Dogs and cats can develop flea saliva allergies at any point in their life, and once they have it, it is seldom rectified. |