My three year-old Barred Plymouth Rock (Tootsie) was found to have a gaping maggot-filled, putrid wound (7cm x 5cm) under her vent. After bathing her in an iodine bath, I gently probed her vent for the egg (I assumed she had been egg-bound) and found nothing specific. I then swiped in the wound to remove the visible maggots and repeated the bath. I applied Neosporin to the area, dosed her with some oxytetracycline HCL dilution, and placed her in a cat kennel in the bathroom. I repeated the iodine bath, removed more maggots, dosed her again and left her for the night. This morning she was alert and vocal. There was an organic mass, which I assumed was an egg in some tortured state, that had been expelled. The wound was not red or pus-filled, and the stench was minimal. I placed her in another iodine bath and removed about a dozen maggots. She had more oxytetracycline, ate some yogurt with rice and returned her to the kennel. I recently returned from the local farm store with an arsenal of supplies. The first order of business, I believe, is to remove the maggots. I purchased equine IVERMECTIN PASTE 1.87% for the purpose of killing the larvae/maggots. Herein my question lies: am I correct in my plan to apply a layer of paste around (not in) the wound nor give it orally? Next question: how often do I dose her? Will I need to discontinue the iodine baths and/or Neosporin? Later today I plan to clean the coop with StallSafe, and continue to sequester Tootsie in the kennel until the wound has healed. I am an amateur backyard chicken keeper (with a lovely, helpful chicken neighbor) but have nursed all sorts of ghastly wounds on my other hens successfully. I have never encountered maggots, however. I also don't want my other girls to be at risk in terms of encountering the fly larvae. Thanks for being available, and I appreciate forthcoming advice.