I just found out my chickens have lice. Tomorrow is treatment day. I have 3 week old babies in with momma. How should I treat them? I have sevin dust and poultry protector. Should I just use the poultry protector on the babies and momma or can I treat with the sevin. I also have 6 and 7 week olds in the coop too. Can I treat them with sevin? I have ducks too do they need to be treated too.