Tiny Critters

I am literally pulling my hair out today-------------I am at battle with LICE. I feel that I am losing at this point. St. Michael.............

Four of the kids got headlice two weeks ago. I had them all cleared---no nits, no live critters, fresh pillow cases every day, hairbrushes in the dishwasher every morning (to be cleaned in hot water of 130 degrees F), etc. etc. AND, today they are back-----------like Poltergeist.

Any suggestions? I don't know what I need more----prayer or a good razor?