That's a very nice looking snake! It's always exciting to me when people find albinos in the wild. Lucky for the snakes too, since I imagine most would not survive to adulthood outside captivity...

You can get betadine from your local pharmacy. Neosporin is good as well, but be sure to get the kind without painkillers added! I know that kind will kill amphibians straight away, and I had someone tell me it left an almost burn-like rash on their snakes once. But the regular kind is good. I can't really tell from the pics... Is the wound just scabbed over, or does it look necrotic?

She is small enough that a regular 10 gallon aquarium with a mesh top would be more than enough room for her. Like Kat said, the tubs can retain humidity, and that's generally bad for healing injuries (plus in a tank, you'd get to watch her more!). You might also want to look into getting a substrate that she can burrow under. I use carefresh bedding (it's paper based and easy to spot-clean). Babies especially seem to like burrowing in their substrate.

Also, just as a tip on food, nightcrawlers from walmart work great. You can cut of tiny pieces and put the rest of the worm back in the refrigerator for later Plus, it's like a dollar for a whole container of them. Just easier than backyard worm hunting IMO (we have solid clay soil where I live, so worm hunting was an undertaking).