Lyclear treatments are specially developed to kill head lice and their eggs. In the event of a severe infestation, some eggs could still hatch after your first treatment, so you might have nymphs or baby head lice in your hair. There is no need to worry, as these nymphs only become mature after 10 days. Before that time, they develop, but are not yet able to reproduce. Treat your hair a second time, and you should then be lice free.
It’s also possible that your hair may have been re-infested. This is probably the case if you find mature head lice of more than 2mm because nymphs are smaller than mature head lice. lf this louse is female, she may have laid eggs again. In that case you need to start treating your hair with Lyclear again.