"Most animal allergies show up in kids who've been protected from any exposure," Dr. Beck says.

In medicine, animal allergy is hypersensitivity to certain substances produced by animals, such as the proteins in animal hair and saliva.

Blame the cats and dogs myth: It should come as no surprise that America's two most popular types of pets - dogs and cats - are the most common cause of animal allergies.

As long as Coco didn't have any animal allergies, these two people who shared the same vocation would get along famously.

They are potent human allergens, and are largely responsible for a number of animal allergies, including to cats, horses and rodents.

It can also be used for auto-immune conditions including lupus, scleroderma, rheumatoid arthritis and animal dander allergies.

Check out what you should know about animal allergies in this article.

Learn about different types of animal allergies, how to relieve pet allergies and more.