Know the basics: cat allergies

Know the basics: cat allergies
8 August 2015 Margaret Brittan

Cat allergies is a hot topic at Bristol and Wales Cat Rescue. We’re asked about this immune response regularly so thought we’d get some advice from a Registrar in Immunology at Southmead Hospital to share with you.


The cause of a cat allergy

Cats secrete a specific protein in their saliva which produces an allergic response in certain people. With frequent grooming, the saliva, and therefore the protein, gets spread all over the cat’s coat and all over the house as the cat moults. Long-haired cats tend to be worse than short-hairs.

Cat owners carry the protein on their clothes too so it’s very difficult to avoid wherever you go.


The symptoms of a cat allergy

Most people allergic to cats have an immediate response – rhinitis (runny nose) and streaming eyes, although some people can have a less severe reaction that occurs several days later.


Preventing a cat allergy

People can develop an allergy after a lifetime with cats – if you have a cat-break for several months e.g. going off to University, you may well find you are allergic when you return home to puss. Solution? Sounds stupid but take the cat’s blanket with you!

You can be de-sensitised to cats but it is a long process – weekly injections of low dose cat allergen for 6 months, then monthly injections for 3-5 years. It usually works but there is no guarantee. Not to be undertaken lightly.

Also, it is not available on the NHS unless you work with cats – eg veterinary nurse. Pet owners do not qualify!


Cat allergies in children

Any allergy which causes rhinitis in children (cats, pollen, dust mites etc) has the potential to cause asthma. Much as it pains us to say it, the medical advice is: if your child is allergic to cats please re-home your cats.

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