We had our first bout a few weeks ago now - almost 4 years before we experienced it and DS has long hair that, until then, was left out and loose at creche, playgroup, kindergym etc.!
Anyway, after doing the initial Quit Nits treatment, purchase of an electric comb and using oils/conditioner, I can say that I think the nightly application of the conditioner/olive oil/tea tree/lavender/naiouli essential oils blend covered with a shower cap for an hour then a combing was what kicked it for us. DS now has his hair ina low plait with some wispy bits hanging near his eyes to keep him happy.