Need advice from those who have had Proctocolectomy

Hello, my husband just had a total Proctocolectomy. Since his rectum and anus were removed, he had to get stitches. Currently, one week after the surgery, he says that his butt feels like there is a pine cone between his cheeks! That is to be expected of course, but my husband heard that this turns into a golf ball feeling and he is concerned about how to handle this. Does anyone have any advice on how to prevent or effectively treat the wound area of where the anus once was? Right now there is no draining. How long does this take to feel comfortable to sit on? Any advice would be greatly appreciated!