your not alone, (try not to let it freak you out) i also have a daughter, 10. i have had a constant battle with lice for the past 3 years. i also have a very clean house and child, thats part of the problem, the little suckers love the clean kids. in the past three years my daughter has had lice so many times i cant even remember anymore. i did everything trying to control the situation, even going to the point of cutting her hair to about an inch long all over her head. i even had the school envolved because that is where she kept getting it from. there is not a lot you can do to keep your little angel from getting them but what i did find that helped was using a leave in conditioner after bathing and also keeping her hair pulled up. once you get rid of them, keep hair products in her hair. mousse, hair spray, anything. lice seems to stay away. i have used every kind of lice removal products on the market, dont use the same brand everytime, the lice become immune when you use the same thing all the time. also, check daily for nits, i found this to be helpful; you catch them right away. i did find a product that works very well, it is a little expensive but very well worth it, since using it twice i have not had another reaccurance, thank the good lord. as far as going to dads, i found that if my daughter goes to someone elses house to spend the nite, a disposable shower cap on the head at nite time is a great way to try and help. my daughter would rather wear that than go through the nitemare of having to be treated again. oh, the name of the the product is "LICE CURE". the directions say to use half of the bottle the first time and then the rest in a week or whatever, i found that if you use the entire bottle and than retreat with another bottle, it works. (havent needed it since)
well, sorry this was so long, hope i could be some help to you, i now this problem all to well and i know it can be very flustrating. i have cried many, many times over this.