We just went through this a couple of weeks ago with our sons, and (knock on wood) appeared to have overcome the little buggers. And, yuck, this was my first time dealing with this - and something I really hope I don't encounter again anytime soon!
I wasn't sure if that was what they had, and originally intended to treat anyway to be safe. But, once I started reading about the over-the-counter treatments, I had second thoughts. The idea of using pesticides "just in case" seemed pretty scary - and most of the articles I read said that in 90% of the cases they don't even work anymore, since lice has become resistant. Read mixed reviews on the other home methods as well.
Fortunately, I found one of those lice places in Hurst, and they were excellent. My plan was to just get checked to be safe, but it turns out the boys did have it, so they treated them there that night. Cost a small bundle (approx $350) - but that included over an hour of strand-by-strand picking on my youngest - who apparently had it first, then a far shorter duration with the rest of us (had the whole family checked). Saved my sanity, that's for sure! Also helped that, in my online research prior, I discovered that you can pay for this with your HSA account, if you happen to have one (which was also a welcome bit of knowledge for us!).
After that, went home and did heaps of wash, vacuuming, and lint-brushing for the next week. Every night: washed all the sheets and comforters on high/sanitary, dried with highest heat setting; put all sleepytime friends in dryer for 50 minutes at highest heat setting; vacuumed main living/sleeping areas; lint-brushed car seats and any other questionable surfaces. Probably overkill, but I was pretty grossed out by the idea. To be honest, we had extra comforters, which helped, since I work full time, husband was conveniently on business travel, and there just weren't enough hours left to run all the loads that would have been necessary. After the first night, I actually just had the kids sleep on the leather couch wrapped in comforters like sleeping bags to save on laundry needs.
Each morning and night, I combed through their hair with the special lice comb I purchased from the place, and checked the water to make sure we were still in control. After a few days, everyone consistently came up completely clean. We've since been back for two rechecks with the place (included in the service) and have come up clean. I still comb the boys every other morning though to be safe - and will probably cut back to once a week now, and ongoing during the remainder of the school year.
My efforts might have been overkill, but it did seem to work - and since so many of the online experiences I read about mentioned re-infestations a week or two later, I would probably follow the same approach next time since we have been successful so far.
I did also alert the kids' teachers and the school nurse - but while they were definitely glad I let them know, the school can't actually do anything unless multiple cases turn up, it seems - which is why I will now continue to check my boys each week to avoid another unexpected onslaught!
Shaving their heads was a thought that came to mind, but aside from really not wanting to do that, I also realized that many might automatically assume lice to be the reason behind that - and I didn't want to subject my kids to potential ridicule (especially since I'm pretty sure they caught it from someone else in one of their classes to begin with!)