My ex started with vicodin, graduated to percocet, and eventually OC's. I moved home a while back, but was going through some boxes yesterday... I found pill casings at the bottom of one of the bins... from perc's.
I know what you mean about hating the pills. Just seeing the shells, brought it all back.
I wish I could say my ex started with an injury - but he didn't. He started getting them from friends, then started buying his own, etc etc.... I just tell people "he got hooked on prescription medication" - I just find it easier, and their judgments easier to handle, when I don't tell them that he just started taking them because he liked them...
I hope your story ends better than mine... Stolen credit cards and a heap of everything I own in my parents living room... but then again, it could have ended worse too....
Good luck to you and I hope your husband is serious about his recovery...