People who can't stay off an injury usually don't recover as fast - that should be obvious - and I'm siding with 'ski here. Really moo...a quick google will do you more good in a minute than waiting for replies.
Grafikal is correct, not walking can cause more problems but that's like an extreme. If you stay off your feet for
non-necessities they'll heal pretty fast. There's nothing wrong with limping around and walking so long as you don't put all of your weight on it.
If it does get worse you may want to find a podiatrist within 500mi since it's not likely you'll find one within the state of pennsylvania. Worse case is that it stays sprained for a couple months, but they recover fast. I've gotten a ton from soccer that healed within a week.
I'd suggest finding a
comfrey leaf as they do work very well. I've used them on sprains, it wont heal overnight but it
works.
They grew all over the place in new york, so I'm sure you can find some in pennsylvania.