not just symptomatically...your
home must also be completely rid of all
cat dander, which may be hiding in carpets, curtains and soft furnishings. Get a lot of help with this, as you will probably get an exacerbation in syptoms as you begin this process. Try to keep home decorated if possible with clean hard surfaces that can be swiffered and mopped or wiped and wont retain mold or dust either. An air filter would certainly help.