Please help. Both my dd's have nits at the moment. I treated them both with Hedrin (waste of time!!) and have since bought a Nitty Gritty comb and have been wet combing with lashings of conditioner every night. Whilst there number has significantly reduced I am still finding the little feckers after two weeks!!! I am reaching the end of my tether with it. Has anyone got any tips for getting rid of them once and for all?