Help advice needed! I have located lice on 3 of my 4 hens, but if course need to treat them all. I have cleaned out the coop and nesting boxes. I sprinkled DE in coop, nesting boxes and outdoor run, while also creating a DE/Dust bath in the indoor run. since I live in liquid sunshine WA State I figure it would help. Here are my questions: 1) Can you eat the eggs while using DE? Yes it is the food grade version. 2) What is an organic method for removing lice? 3) If I do use Sevin or Revolution, how long before we can eat the eggs again? Please help!