Are cat allergies from hair or saliva?
Are cat allergies from hair or saliva? Cat allergies are twice as common as dog allergies. But contrary to what you might think, it's not the fur or hair that's the real problem. People with cat allergies are really allergic to proteins in the cat's saliva, urine, and dander (dried flakes of skin). Can you suddenly become allergic to cat hair? Yes, it is possible to suddenly become allergic to cats, since various allergies can develop at any point in your life, such as a pet allergy. A person can develop allergies at any point in time throughout their life....