Hi there! My flock is currently dealing with not only roundworms, but de-pluming mites as well. The girls have already been wormed once with Safeguard 10% liquid suspension, and today is the re-worm date. Does pour-on Ivermectin effectively treat roundworms in poultry, or am I better off using the Safeguard again? Ideally I'd like to kill both the mites and worms at the same time, the poor chickens look pretty rough right now. Any help is appreciated. Thanks for reading!