Pet Allergies
Cat and dog allergens (unlike other indoor allergens such as dust mites or cockroaches) consist of very small particles that remain airborne for long periods of time and are very sticky to clothing and other surfaces. Because of these factors, cat and dog dander are found even in places without pets. For instance, pet dander has been found in school buildings brought in by children with pets at home. It is for this reason, most likely, that people can become allergic to dogs or cats without even having one in their home.
It is not currently known whether having pets in the home is more likely to make a person allergic to the pet. But we do know that if a person is allergic to a pet and has one in the home, their respiratory allergies will most likely be worse. Pet allergies can cause nasal allergy symptoms as well as asthma symptoms. An allergist/immunologist can help determine if you are allergic to your pet and to discuss the many different treatment options for your pet allergies.