I think this is funny - my daughter was just sent home today for lice!
To get rid of the nasty little things, it's usually best to...
1 - vacuum the carpets and matresses,then empty the cup or throw away the bag.
2 - wash linens, clothes, coats, scarves, etc., in the hottest water possible, then dry in the dryer for as long as the fabric can stand.
3 - wash stuffed animals the same way.
4 - all items that can't be washed can be bagged up in a trash bag and placed on the back porch for one to two weeks.
5 - treat both her AND yourself with the shampoo.
4 - spray the upholstery and mattresses with a lice spray.
5 - comb, comb, comb, comb. You'll need a steel toothed lice comb, and you'll have to go through her hair for an hour, maybe more, depending on how thick her hair is. Do this right after you have shampooed her hair. Divide the hair into sections, and begin to comb, starting close to the scalp, and it will draw the nits and lice out. You can soak a paper towel in rubbing alcohol and use that to wipe the comb off.
Sometimes, instead of using the shampoo, you can just comb. Olive oil will help "unglue" the nits... you'll have to rub it through her hair and let it sit for a few hours. After you're done combing her hair out, you might have to wash her hair with dish soap (it cuts the grease better) and then rinse it with vinegar to get all of the oil out.
When I was little, I often became reinfected because we forgot to spray the cars upholstery, or my bookbag - things that travel or are outside of the house that you normally don't think about.
Hope this helps!