They didnt discuss ways to treat/prevent swelling? Im a bit surprised. Send your bf to the store to pick up a couple of bags of frozen peas and use those. Yes I knwo sounds cold but it is a common thing used for guys who get vasectomies. I say a couple cause you will want to switch them out as they thaw out. If they didnt give you anything for pain then see if OTC pain relievers will work. If one brand doesnt work switch til you find on that does. I do that cause if I use one OTC too long the effectiveness just isnt the same.
That should help. You also might want to look at the cosmetic surgery board. I know yours wasnt for that reason but rthere are several posts that deal with surgery in that area and Im sure you can find some info there that might be helpful.