How to Treat Chicken Missing Half of a Toe?

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My local FFA chapter raises egg-laying hens. Sometime around last week, one of the young leghorn pullets got her claw twisted on something and damaged her toe severely, which nobody wound up seeing until it turned dark and shriveled and became noticeable. They wound up amputating around half of her toe due to the severity and left her isolated for a few days. The hen (now named "Digit") was put back in the coop with way too little healing time and wound up cutting her toe open again and had it bleeding again. This led to another isolation period. Unfortunately, there is no official "isolation" area and Digit was placed in a not suitable environment for a hen trying to recover with an open wound. I could tell that Digit was very uncomfortable and the chance for her to get an infection was very high so I bought her and took her home that evening. Now I'm worried she will get an infection from the wound or will not heal properly. She is only about five months old and is very docile. I think her toe was amputated around a week ago, and I just took her home yesterday. I am keeping her inside my bedroom on towels and newspapers while the wound is still open and plan on switching to bedding once it starts to scab over and in a few months try to introduce her slowly into my current flock. She is eating fine and drinking fine, I added a bit of aspirin to her water to lessen the pain of her toe. She can limp around but I can tell her toe is causing her quite a bit of pain. I cleaned out the wound earlier today with hydrogen peroxide (while now realizing that it was not the best idea and will not be doing again in the future) and added Neosporin. I tried to bandage it but am unable to keep it on the bird. What are the signs that it is infected that I should look for in the future? How long will it take to heal? And what sort of treatment would be suggested on a day to day basis, I'm not sure how easy it would be for me to get my hands on something linked directly to poultry so would a cleaning with warm water and Neosporin be okay? What are precautions I should take with her? Below is a picture of Digit and how her toe is currently (the blue is from a spray the owner used in attempt to heal it, and the white is from the neosporin). Sorry about all the questions. But I am very worried about her

 

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Here are the supplies you need for proper wound care. With proper bandaging, Digit can go outside or be with other chickens and the wound will stay clean.

You need:

Vetericyn spray or gel
Vet wrap, elastic bandage for animals. It sticks to itself. Cut into 12 inch long by one inch wide strips. You will only need one of these each time you change the bandage.
Telfa non-stick pads
Triple antibiotic ointment
Epsom salt

Soak the wound in Epsom salted warm water for fifteen minutes
Dry and spray with Vetericyn
Dab on the antibiotic ointment when the Vetericyn dries
Place a telfa pad over the open wound
Wrap securely, but not real tight, with Vet wrap. If you start on the toe and wrap upward, ending at the bottom of the shank, the bandage won't come loose as she walks. Smooth the end firmly in place and it shouldn't come loose.

Bandaged correctly, no dirt can get into the wound. Check the wound after two days, looking for swelling and redness. Infection isn't likely if you've followed the directions above. If the wound is dry to the touch on the third day, and it's not oozing or red, you may be able to dispense with further treatment. If it doesn't look healed, repeat the above steps and re-bandage.