Head lice are usually something parents face at the start of the school year. So, how do you prevent your kids from getting them and how do you get rid of them? Owner of head lice treatment service, The Hair Force, Andew Hennessy, told RTÉ LifeStyle: "Nits and lice are at epidemic proportions in this country. "Traditionally, the peak times of the year have been shortly after Back-to-School [September] and again after Christmas however, in our opinion, it is pretty much year long now.