Finally a use for all that Ivermectin I’ve been hording.
(no, don’t do this, this is not medical advice. It is a possible treatment for lice, but rarely the best choice because of side effects)
Permethrin lotion is pretty common for treating head lice too. Make it very clear to everyone in the household that it is incredibly toxic to cats. (not a big deal for dogs)
I think less aggressive school polices around public health issues will result in a slight uptick in the frequency of head lice.
That said. Head lice is annoying to deal with, but generally not dangerous. And it treatment is more about just putting in the work, rather than going for fancy remedies (many of the natural ones aren’t very effective). Remove nits and keep doing this until there are none left.