Lyclear creme rinse is a fast effective 10 minute effective treatment for treatment of head lice and their eggs suitable for use on adults and children over 6 months of age children under 6 months of age should be treated on the advice of a doctor one bottle is usually sufficient to treat one person with shoulder length hair of average thickness it is unlikely that more than 2 bottles will be required if one member of the family needs treatment it is important to check the res