I have never had the experience but I've heard that you need to clean everything. The carpet, stuffed animals, pets, bike helmets, hats, hair brushes ....everything. Because the lice lay eggs and they hatch a few weeks later and then you're staring all over again, so maybe you should schedule a carpet cleaning twice. Once now, once in 3 weeks.
I use TLC Carpet cleaning and they are wonderful. ###-###-####
As far as other treatments.... you can find them on-line if you do a google search on "lice treatment" and I've heard mayonaise works if you put the hair in a shower cap.
But don't bother till you can coordinate the house cleaning.
If you had a boy you could shave his head.... but that probably wouldn't look good on a girl.