Hello all! First I want to apologize... I know this question has been brought up many times in past threads. I've been reading through the archives on this topic and it seems as if the more I read, the more conflicting answers I get. I would like to treat 20 birds (two standard and 18 bantam) for worms, mites and lice. It's been six months since they were last wormed and I have recently seen creepy crawly bugs on them. I've read good things about Ivermectin as a solution for both problems. Unfortunately, my local feed store only carries the Ivermectin 1% injectable type. The fellow at the feed store told me to give it to my chickens by mouth, though he didn't give me the dosages (told me to look it up, I understand the off-label usage thing). My questions are: 1. What are the correct dosages for standard and bantam sized birds if given by mouth? 2. I've also read that it can be mixed into their water? Is this way better and what is the correct mixture ratio? 3. What is the egg withdrawal time period? Thank you so much in advance! The creepy crawly bugs are really grossing me out and I would like to get rid of them as soon as possible before it gets worse. I am just worried about using a new product without instructions. I don't want to hurt my chickens by overdosing them.