The cat is running a fever now, its nose is all bunged up and the parasites make it feeling awful. It needs your help right now. First, blow its nose; Second, clean up the nasal cavity. Then the most important thing is that using the spray kill off any parasites. You should be careful with this step, because different parasites need different medical tools and the parasites are hiding away in the nose, so you should use the medical microscope seek out them one by one. After all of steps, let's dress up the cat and make it more lovely. I believe you will be a good doctor and the cat will be very grateful for you!