'Indestructible' head lice now resistant to over-the-counter remedies, researchers warn Head lice have become immune to the most common treatments, new research has revealed, meaning parents are fighting a losing battle with nits in their children's hair.
Mutated "super lice" that cannot be killed by the most popular over-the-counter remedies threaten to create a headache for families across Britain this summer.
The itch-inducing pests already lead to missed school days and frustrated parents, who could have even more reason to be wary of the "indestructible" lice this year.
A US study has revealed that 98 per cent of head lice have developed a resistance to pyrethrins and permethrins - the active ingredients in most remedies available in pharmacies. The Daily Telegraph
Mutated "super lice" that cannot be killed by the most popular over-the-counter remedies threaten to create a headache for families across Britain this summer.
The itch-inducing pests already lead to missed school days and frustrated parents, who could have even more reason to be wary of the "indestructible" lice this year.
A US study has revealed that 98 per cent of head lice have developed a resistance to pyrethrins and permethrins - the active ingredients in most remedies available in pharmacies. The Daily Telegraph
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