Lice sucks!!!!
Last fall DD7 got it, not sure who from, no one ever called to "fess up" (but I don't blame them, it would be hard for me too!).
I agree w/ other poster to get the comb that has the little magnifying glass. It works very well. It has a plastic handle w/ the magnifying glass built in and metal teeth. The plastic comb that comes w/ the lice kit is junk.
Just keep a close eye on her, and see if you can find any eggs......look through her hair small section by small section. I think the best way to resolve is by very, very regular "nit picking" and removing everything you can. I'm still not sure that the shampoos really helped that much. You'll see them closer to the scalp, where it's warmer, many times you'll find them in the hair behind the ears.
DD has THICK and CURLY hair so we would spend hours doing this.
As far as cleaning, if it makes you feel any better, we didn't get overzealous w/ cleaning. Think of it - lice are parasites, the eggs need warmth to hatch. And the nymphs and adult lice need blood to survive. So if something falls on a stuffed animal or carpeting, there's such a tiny, tiny chance of them getting lice that way. We washed bedding and recently worn clothes and jackets in HOT water. We vacuumed very regularly. We didn't bag up any toys or anything like that. I used the lice spray that came in the kit on many different things - toys, couch, headrest in the car, backpack, and any place else I felt like her head would have come in contact. She wore a braid for a little while, so her hair wasn't all free flowing. All these things resulted in NO reinfestation and no problems since then.
Also, if she does end up with lice, please don't feel badly or embarrassed about it. It really isn't a big deal - lice have been around for millions of years. It happens. It's a pain in the ****, but it's workable. And another thing too - I made a much bigger deal out of it than DD did - her and her friends would just talk about it like it's nothing (much to my dismay at the time!)......at this age, it really doesn't have the stigma that it does in older kids!!!
A funny thing too.....DH and I BOTH thought for sure we had lice too at this same time. He came home one nite and said he thought for sure he had it - I checked and checked and not one thing. I also got very itchy, and NOTHING. I've read several places that boys don't usually get it, probably because there's just not as much hair! Actually, my head is itching as I type this.......