I have silkies and EE's. Did all the reading for worming. Two weeks ago started my chickens in Wazine 17 at the same time I got a new silkie hen that was just given Valbazen. This is now two weeks later and I'm going to give pour-on ivermectin to all my chickens. I'm wondering about the new hen should she get this as well? I only want the best for her and don't know to give it to her or not. I don't know about Valbazen and how that works. I'm very found of her and only want to do the right think. Please help. I don't know what the right thing is. She is not sick or anything. I would also like to know when I de-worm in 6 mos. do I use ivermectin just one time or again 2 weeks later. Still need help.