I have been reading this post about your hen with maggots near her vent area. Today I am dealing with the exact same issue that you had. My chicken is eating well with hard boiled egg and drinking some water. I have soaked her twice now with regular salt and then I used Epson salt. I did get some antiseptic skin cleaner from Walgreens and squirted that on the area with the syringe. I don’t know what kind of anabiotic to get if you could help me with that. After the soaks, I do use tweezers and remove as many maggots as possible. I just don’t know how far up into her cavity there are but I do know when I do so her. I usually see about six or eight floating in the water and then I’m able to remove about four or five more after that, I hope she’s not infested with them. I think I will go ahead and try the Neosporin tonight is that the antibiotic that you were talking about or is there something else I should be giving her orally? I hope your hand made it through. Please let me know.