You may be able to make a little brace for her to help the leg get as close to standard as possible. The brewer's yeast is a great idea. Closely supervised tub time may also help strengthen the leg and bring it into line. It's worth a try!
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Regarding bandages - there's a balance - of course, wrapping too tight is a problem, but I feel keeping it wrapped all the time may not be the best thing, either - some bacteria like a low-oxygen high moisture environment. So it's an experiment - you may find some kinds of material work really well.
Vet wrap is something to consider. I recall someone using moleskin pads on the bottoms of a duckling's feet to help encourage proper form.
