So one of my girls had a dirty bum and I questioned if she had lice. Caught her yesterday and there they were on her and my other two girls. I read DE was very bad for their lungs and not to use it so I called the local feed store and they said dusting powder. So I bought a can gloved up put a mask on and dusted their vents and under their wings. Cleaned out the hen house and dusted in there and the nesting boxes. After reading a few posts here I now have no idea if I did the right thing....I love my girls and we prefer to stay natural as possible. What the heck do I do now and will this for sure work..? I assume we throw out the eggs...but for how long? Is there a better way to do this..? I put a dust bathing spot in their run today for the days when they don't free range. But I am feeling like I did the wrong thing but I do not know what to do differently. Help!?