Hello, I have taken on six beautiful chickens but on closer inspection i can see that they haven't been taken care of at all.They were covered in lice,i used the powder but couldn't seem to get rid of them so i used frontline.It has worked a trick,absolutely brilliant but they have clumps of lice eggs around the base of the feathers around the vent area.When these hatch will they die because the frontline is still active?or is their something else i should be doing?I've put lice powder in the nesting box,in the coop and on roosting bars.I've provided a dust bath is their anymore i can do. The girls have also had some feather loss,i'm sure this was due to the lice. I'm currently giving them plenty of protein to try and help things along,i'm getting worried that the weather is getting colder and the girls will freeze. Any advice will be greatly appreciated. thanks in advance.