GS has visitors in his hair again! best treatment?

Avoid insecticides. I really regret using these nasty chemicals on children's heads. Combing rips the legs off the adults. Good plan to do this after school if headline on the prowl. Nit combs drag the nits (eggs) off the hair and conditioner makes it easier to do this.
I don't think they can live in bedding folks. The adults want to be on a nice warm head. Their life cycle does not include a period spent in bedding (as fleas and bed bugs do)
The nits are the eggs and they are firmly attached to hairs. So they won't be found in bedding or clothing either.
There is a great photo of a nit in this exhibition I saw last week. Might be very interesting to your GS?

www.wellcomeimageawards.org/2014/plant-reproductive-parts

ok condition on (when he eventually came in from playing) wouldn't have it on prior! nit comb at the ready for in the morning, could only find plastic at the mo 2 for a £1 chap next to me saw what I was buying, said oh myyyy havn't seen them for years! he says this is what happens when nitty Nora doesn't come to school any more lol (glad I wasn't buying anything personal) !

Just spoken to DD and she said the Nitty Gritty comb was the one she found very effective. Bought from Boots( is this advertising?).

only if you are Boots shareholder annsixty

Boots also sell an electronic nit comb which zaps the little blighters.