I don't think the poultry cell will affect the antibiotics, unless you were watering down the amount in the dose by mixing them. Sometimes it's not recommended to mix meds in drinking water, more because the taste can put them off, and they won't drink enough. I can't find anything that says it makes it less affective, only that taking vitamin C or mixing it (amox.) with acidic things can reduce it's effectiveness. It does look like she might lose the middle toe and the tip of the other. If the rest recovers I think that would still leave her enough of a normal foot that she would do fine. Birds do lose toes to all sorts of accidents.
The other meds I use for infection have been clindamycin and cephalexin, (fish cin and fish flex) both gotten as fish antibiotics, which I've used when amoxicillin was not effective. I don't think Jedd's sells those.
The other meds I use for infection have been clindamycin and cephalexin, (fish cin and fish flex) both gotten as fish antibiotics, which I've used when amoxicillin was not effective. I don't think Jedd's sells those.