Ok I just had this go through my daycare in November ..... Keep checking your daughters head several times a day for the next week or so ..... Lice don't jump so she would have to have had head to head contact or put her head on a surface where an adult lice was. An adult lice can live off the body for 2 days only. I would not recommend treating her with the lice shampoo as it is seriously toxic. If she has an adult lice and it lays eggs it takes 10 days for the egg to hatch. The egg is not able to be just flicked off it is stuck to the strand of hair. This is why you need a "fine" tooth comb or "lice" comb, and you have to go through her whole head and then do a second treatment 10 days later ( or what the directions of the particular treatment is that you buy) keep checking her and keep your fingers crossed that you don't find anything. If you do and she is school age you should notify the school ( even though she hasnt been at school since contracting them) but they do not exclude from school any more and they no longer do random head checks. Wash all of your linens in hot water (I have a sanitize option on my washer) and bag for two weeks anything that can't be washed such as stuffed animals , dolls, ect. And vacuum repeatedly..... Hope this helps