TreatAllergies.com

Animal dander is a common allergen. The oil glands in an animal's skin secrete proteins, which are also found in its saliva, that can cause an allergic reaction in some people. Animal dander consists of the hair, fur and dry skin that an animal has shed that contain these proteins. The symptoms of an allergy to animal dander include the usually indicators of an allergy, including sneezing, itchy and watery eyes, and congestion. They may continue for a considerable time after contact with the animal.