Lice shield

Karen

So my daughter came home with lice yesterday. We treated the problem with Rid lice treatment, washed everything and sprayed down the unwashable things... I even combed her hair for 3+ hours yesterday.

A question I have is can I use something like lice shield between treatments? Or is it a waste since I have to treat her hair again? My thinking is if I use lice shield or w/e it will keep her from getting anymore matured lice.