Here is a Sept 2014 article from the CBC (that's the Canadian Broadcasting Corporation - if you are not from where I live). I think it is a good article, but that's because of my personal bias towards wet combing with conditioner and a metal lice comb and my bias against using so-called "treatments". Check it out:
http://www.cbc.ca/news/health/head-lice-most-used-treatments-no-longer-very-effective-scientists-say-1.2776917