First, none of us are trained professionals in anyway, so take anything we say with a grain of salt. But here is my advice. Essentially, do whatever you can as long as it doesn't hurt. A lot of guys seems to rehab well with a ton of really high rep work, as in sets as high as 50 or 100. This is to get a ton of blood (which carries nutrients) into the area, promoting healing. This is with very light loads, of course. One resource I would suggest to look into are the logs on EiteFTS; they have a section dedicated towards rehab. Take a look, read what you can, and send one of them an email.
EDIT: Here is the link.
http://asp.elitefts.net/qa/default.asp?tid=42&__N=Rehabilitation