Useful links
On this US site an overview is provided of all running consumer law suits against the various manufacturers of toxic headlice treatments >> Head lice Information, Laboratory of Public Health Entomology, Harvard School of Public Health, USA >> A concise but very complete overview by the Washington State Government on the nature and treatment of head lice >> The site of the US National Pedicolosis Association, providing a wealth of information on the effective treatment of head lice >>