Duramycin. It is labeled for cattle and swine, but my vet uses it off-label for poultry and other animals as well. It is a broad spectrum antibiotic (oxytetracycline) and is well tolerated in chickens.
Available at Tractor Supply
You asked to be corrected if what you said about "nothing will kill maggots" is not true.
Ok, so this is your "correction"! ;)
Maggots are easily treated with 1% Ivermectin injectable, .1ml into the breast muscle for a standard sized chicken, in my case, a Buff Orpington. 1% Ivermectin is...
Maggots from Flystrike, or any maggot infestation, is best treated with 1% Ivermectin injectable. Soaking is good to get off the ones on the surface and anywhere the water can reach, but an abscess can be full of them and a water bath will do no good. Also, any freshly laid fly eggs will also...