No,don't use products with any ingredients listed with "caine/cane". Wash/dry vent then put a bit of vaseline around vent area. Does chick poop ok,or is she straining. Try adding a bit of warm water to feed,chicks love this and it increases their water content.I was under the impression that the "caine" family was toxic to chickens......I see all over the place not to use any ointments with pain relief because of the "caine" ingredients?????