When are shampoos and lotions indicated in the treatment of body louse infestations of pediculosis and pthiriasis (lice infestation)?

Updated: Aug 16, 2019
  • Author: Lyn C C Guenther, MD, FRCPC, FAAD; Chief Editor: Michael Stuart Bronze, MD  more...
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In cases of heavy pediculosis, treatment of the body with a pediculicide shampoo or lotion may be beneficial, especially if the patient also has confirmed or suspected concomitant head or pubic louse infestation. Oral ivermectin 12 mg given as 3 doses 7 days apart has also been shown to be effective in a cohort of homeless men. [21] None of these agents is currently labeled or marketed for treatment of body lice in the United States. In some cultures, monkeys are used as patient nit pickers to groom the hair and to remove adult lice and nits.

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