I would be very weary of daycare. Kids can be cruel and mean and in my experience daycares don't do the best job watching after kids.
I was a child who had lots of accidents. I spent months recovering from 3rd degree burns and months in a body cast from breaking both legs.
Some of the things I did as I also couldn't go out run, play, etc.... I did lots of activity books, coloring, blocks, learning games (at that time it was speak and say- okay giving away my age). 3 is a great age as they are so wanting to have all of your attention and so willing to learn. Make cookies together and let them shape them and help you more. Finger painting, playdoough and all the fun stuff moms normally try to keep away from the kids well now is the time to enjoy it.
It is getting to be Thanksgiving and Christmas let him help you make decorations or cards or whatever.
Hope this helps some