I had my 4th unpaid "vacation" day today, thanks to the lice. Because I clearly cannot find all the nits in my daughter's hair, I subjected her to the blowdryer and the olive oil treatment (not at the same time, which, as my husband pointed out, could be a disaster).
She was a good sport. I tried to make it more fun by letting her pick out her plastic bag hat. It had fish on it. (This is why I save plastic bags - see? They really DO come in handy. I'm kind of bummed I threw as many away as I did when we moved.)
Daughter and I are both getting bad dandruff, as a result of the frequent hair washings, combings, and hair drying, I presume. This makes it even harder to identify nits vs. not-nits.
I combed her hair out tonight and didn't conclusively see a single nit (there were a few questionables). The husband thought I had fewer nits today, too. Progress is good, but since a single mature louse lays 3-5 eggs per day, progress is not success.
I've decided to research the biology of the bugs to determine the best way to deal with them. The nits apparently only hatch in a cozy room-temperature-to-hot range (but too hot kills them - the only thing that does kill them). The lice can live for up to 2 days without eating, but they're actually susceptible to treatments. So killing them before they lay nits and minimizing the number of nits hatching on your head seem to be the keys to success.
In good licekilling news, it's supposed to be colder this weekend - below their comfort threshold. If we can manage not turn on the heat, all the nits in the house that we may have missed won't hatch.