Hi, fishgrappler! I'd have to second Brian's suggestion about having your foot seen to so you can see what kind of injury you're dealing with, as that might affect the treatment, both for your acute pain and your long-term healing. As, if there's a broken bone and you can get it immobilized, or treat with heat/cold if it's a tissue damage injury. That itself might help with some of the pain, if that makes any sense.
I'm on suboxone, also, and if I was in your situation, I'd call my sub doc and explain it to him/her, as I'm a little leery of taking strong pain relievers and sub at the same time, or within short times of each other. I'm a chronic pain patient, and I also don't find sub a good pain reliever for eithe my chronic pain or any kind of acute pain. I'm with Brian that the OTC's would be the way to go if you're going to self-treat, especially the NSAIRAB and/or anti-inflammatories.
I also would agree that if you did get put on a strong pain med, to have someone you trust hold them for you while you're under treatment (at least that's what I'd do in my case).
Good luck and I hope you're feeling better soon,
rose