I had seen it online that you can treat chickens with a small drop of Ivomec on the base of their neck(on the skin). I have always used dust but my oldest rooster has a serious problem with mites and the powders seem to do nothing for him. So I figured the ivomec was worth a try. I wormed all of the chickens and two of the ducks yesterday with the Ivomec Pour-On. a drop on each bird but Both the roosters got two extra ones under the wings... I did both boys, just in case the son has the same issue dad & grampa did with mites. What I want to know is about how long I should wait after treating with Ivomec before collecting the eggs for eating? Or would there even be any ill-effects of consuming the eggs from the treated hens? This was my first time using it for the chickens. thanks so much for the help.