Most cats do quite well after neuter surgery. If yours does not, please call and let us know what is going on. There should be no sickness, he should feel good, he should eat well, and his incisions should not be red, swollen, or oozing. Problems would include vomiting, lethargy, poor appetite, or leaking or oozing from the incision. If there are any problems, please call and let us know. Most cats go home on pain medication. Buprenorphine or Onsior is a pain medication that is given orally. There is no need to restrict your cat's exercise. However, it is a good idea to keep him confined for a few days so you can be sure to give the pain medication. At least once a day look at his incision. Make sure he is not chewing or licking it. The incisions should be dry and clean. Do not put anything on the incisions. I do not recommend cleaning them, as that can slow down healing. No bathing for two weeks. There are no stitches.