OKAY Ladies...
Now that we are all itching at the thought of the little buggers, here is the easiest solution I've ever dealt with. My sister has 3 girls (I have boys) and they have long hair. The youngest was 3 when I did this. My sis couldn't get rid of it from her older girls' hair, and the little one wouldn't let her run the metal comb through. She had spent close to $250 on the stuff you buy from your drug store, even had the prescription kind! I spoke to our school nurse (I live in a different district - 45 minutes away) and she said, of all things, mayonaise. Put it in their hair, put a plastic trash bag (hotel shower caps work great!) on to cover the hair. Follow all regular lice cleaning instructions for your home (put all stuffed toys in a plastic trash bag, vacuum all floors, run a HOT iron over beds, wash all clothing and bedding in hot water and then dry the chit out of it in your dryer, etc. Do all of this cool stuff while your hair is slathered in mayo. When you have deloused your house, get two chairs and sit in the backyard. Take off the plastic bag and now, using the metal comb, slide it right through the hair. Drop all clothing directly into the wash from outside so as not to let any of the little varmits back into the deloused house. The mayo will smother them, but the biggest thing is that they hate it. The mayo is just slickining (?) enough to let you get the comb all the way to the scalp without pain. The nits just comb right out. I swear! Do your own hair last. As you delouse another head, send them to the shower and have them wash their hair with regular shampoo, but I added two drops of dishwashing liquid so as to cut the greasy feeling. Use a nice conditioner or creme rinse. Now, here is the Rest Of The Story... Use the mayo once a month. It not only kills and repels the boogers, but also is a nice deep conditioning application for your hair. Of course if you want, you can just shave everyone's head. That is another way. My aunt used kerosene (every bottle of shampoo she ever bought, she added 2 tablespoons of kerosene). She never had any lice problems... Come to think of it, she never had any hair... lol... just kidding... I think... well, my uncle was bald anyway... lol...
Good Luck!