Stephen lives inside and was a single bunny when he went in, all I did was make sure I had some herbs (basil is a favourite here) to tempt him and I kept him in his cage for the first few hours until I was sure he'd pooed and weed then I left him to it! He didn't need any take home pain relief as he had a dose before he left the vets, and most boys will be Ok without any to take home with them.
Stephen did sulk for several days afterwards, he made himself a little nest under the stairs and only came out to wee and poop so I just checked on him, put his food etc in his nest with him and made sure it was comfy (put a blanket etc in there for him) and after 2 days he was fine and hopped out and gave me a cuddle and a kiss. I was really upset that he hid away but he was cross and upset and a bit groggy still and I knew he was eating and drinking so I just left him to it.