Super lice look no different from regular lice but are simply more challenging to get rid of because they are resistant to ...

Head lice affect more than 100 million ... 2 years of age with head louse infestation against which treatment with either pyrethrin or malathion 2–6 weeks before enrollment had failed.

or malathion. These therapies have been the first line of treatment for head lice since World War II. Today more interest is being placed on treatments that are alternatives to conventional ...