I have no experience with spooky treatments on animals.
I fixed a suitable remote preset for your cat:
Cat Flu - Calicivirus (R).txt
I would try the detox programs in the Spooky software. If it does not work as it should be, you may check in the shop or online for a great homeopatic remedy called: "Okoubaka Aubreville" search for more info via google. It is a great detoxing remedy for people and animals.
For more details, please check the link from: