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A 22-year-old man presented with a 1-month history of severe pubic itch that was worst at night. He had had a new sexual partner 1 week before the onset of symptoms. There were no systemic illnesses, genital lesions, or pruritus outside the groin area. Numerous nits were visible to the naked eye, near the base of the hair shaft (Panel A, with close-up in Panel B). He received a diagnosis of pubic pediculosis. All the other hair-bearing skin, including the beard, armpits, mustache, and eyelashes, were examined for the presence of lice and nits, neither of which were seen. No other sexually transmitted diseases were diagnosed. Lindane ( -benzene hexachloride) 1% ointment was applied once daily for 2 days. The patient was advised to use a fine-tooth comb to remove as many of the nits as possible and to wash all clothing and linens. The partner was not available for treatment. Two weeks after the treatment, the itching had resolved and the nits were gone.
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