The problem with bandages and hedgehogs is that they'll tug and tug on them - then, either they come off or (worse yet) they tighten around the limb, cut off blood supply, and there's need for amputation even further up the limb.
Sounds like maybe she put on some of the "new skin" liquid bandage... tastes horrible and stings like the devil until it dries. You might try putting on a new coat of that before the current coat rubs completely off so that it's thicker (ie, more time before it wears down... more of a chance you can avoid applying it directly to the wound and make horrible stingies for Sookie).
Gosh, what a hard situation to be in...
Okay... if I didn't have my normal vet, I'd aim for an emergency vet. Even if they don't normally see hedgies, they might on a more emergent basis. Though... if I was totally alone, I'd hold hedgie close, monitor everything under the sun (ie, her activities, weight, pooping, peeing, vocalizations, etc...) and hope that she doesn't start bleeding or gnawing on the surgical site. If she did, that's where the hold close and be ready to apply pressure to the wound comes into play.
I'd also watch what Sookie is doing with the wound. If it's irritating her and she's rubbing, chewing, or sucking on it, then you definitely have a problem on your hands. You'll pretty much have to call vets near and far and find pain meds. I'd probably do that anyhow...
The other thing that (provided there is no sign of infection) I'd use as a bit of a protective coating is vaseline. It'll seal out the urine/moisture. I've used it to treat under-belly skin irritation on Satin (she was a bit fluffy in size and liked to sleep on bare plastic under her liner -- trapped urine would lead to skin irritations) and on my own surgical sites as advised by an MD. It works well to seal out the bad stuff... but also works in the other direction (ie, it'll seal in bacteria that's already there).
I'd hope that the oral antibiotic would be enough to prevent infection... but I might add neosporin in addition. Just don't put on any of that pain relieving neosporin in an attempt to treat any pain/irritation yourself. Stick to the regular.
I pulled up a couple of my hedgies' rx's... If you can find an e-vet who's not 100% confident of dosage, but is willing to prescribe, I have a value for pain meds Satin (who was ~650g) received when she sprained her leg:
Metacam 1.5mg/ml concentration; administer .08ml orally 1x/day
You can see if that's in the ball-park of what they're thinking.
Another thing I'd try is some advice I received from Nancy/Hedgemom:
"Add a pinch of ground rosehips to her diet. They have healing properties and add Vitamin C to the diet. Ground up they are hedgehog-safe.
Chopped fresh cabbage (chopped up so it's all bruised and crushed) can be applied as a poultice and will help relieve inflammation and speed healing."
Again, this is with a sprain, rather than an amputation, but I can imagine that the rest of her foot/leg is feeling pretty banged up right now. I'd stay away from applying the cabbage poultice from an actively bleeding area... but the Rosehips in her food sounds good. And, later, with a bit of healing, I'd try the cabbage. Make sure to rinse her little foot/leg off afterwards!
