Hello and welcome to BYC!
If she were my bird, what I would do is first soak the leg in some sort of saline solution or iodine. Get a warm tub of water and either put in some iodine or bit of salt. I would soak the bird for a few minutes so it penetrates into that wound. Then I would towel her up and lay her on my lap, feet up, head at my belly, and I would apply some antibacterial ointment. You can use neosporin but the kind without the pain killer only. Then I would put some gauze over the wound and wrap it with vet wrap. You can get vet wrap at most feed stores in the horse section and even Walmart now carries vet wrap. You will probably need to start the wrap above the wound, go down to the pad and around the webbing and back up to keep it where you want it. You will have to experiment with the wrap. Then keep her someplace clean and dry.
I would do this daily for a few weeks. If she starts to show some serious infection in her body, (she is lethargic, fevered, not eating, etc..) then you might get her on some Baytril or Doxycycline. But for now, I would treat this topically.
Good luck and keep us posted!! I hope she makes a full recovery!! :-)