i have boys....yay me! Ive only ever had this issue when DS 8yrs got long overdue for a haircut and as he has extremely thick hair (im talking he puts the broom to shame!) its like a haven for the little buggers.
There's a little gadget you can get (last place I saw it would have been a chemist) its like a lice comb but its electric and it fries the lice and eggs on contact so all you've got to do it plug it in, sit the kid down and comb away, removing the dead electrocuted lice/eggs from the comb as you go. They've been around since I was a kid, my mum used to make me comb my hair with it every couple of days through my school years as I had hair down to my bum.
Oh I just googled it heres a link to a website that sells them $50 for it, but considering how much you pay for the lotions and stuff.... http://search.pharmacyonline.com.au/...ls/Lice%20Comb