Hi Jens

I've been doing alot of research into allergies and pets as I took in a stray but my sister has an allergy to cats! At the moment she lives outside but I'm hoping to start bringing her in at night time.

As the owner gets used to the cat the allergy may calm down.
Otherwise try the following:

1.0Don't let the pet in the bedroom as the allergic person will basically be exposed to the allergy while they are sleeping which could be 8 hours per day.

2.Hoover the house every second day/ every day

3.Brush the cat every day - preferably outside the house.

4. Apparently there's something called a Love Glove which you can run over furniture every day and will pick up the animal hairs etc - I can't get one in Ireland though !

5. You can get a spray called method which you can spray the furniture with and prevents dander from floating - it's the dander most people are allergic to.

6. Get removable covers for the cats bed and wash regularly

These are a few tips which should help but there's also a wealth of info out there which the person could look into !