The use of a detector comb is an important 1st step in the management of head lice and should be used before any treatment commences. Headlice are small insects with six legs and no wings. One of the symptoms of infestations is itching of the scalp. This only occurs when the scalp is sensitised to bites, which can take as much as three months. Instructions for use: Use the Nitride detector comb by combing locks of hair from the root to the ends. When using the comb, you may see tiny brown eggs or white shells (nits) attached to the hair close to the scalp. On occasions, you may notice lice moving through the hair. After combing from root to end, check the comb for the presence of lice on the comb. Ensure the comb is clear of any lice or eggs before each combing. The head lice can be removed from the detector comb by washing or wiping. Repeat the above procedure until all of the hair has been combed. Pay particular attention around the nape of the neck, behind the ears and around the fringe. The Nitride head lice detection comb is suitable for use with all commercially available nit products.