A simple matter of grooming.
D000818:Animals; D002648:Child; D002669:Child Welfare; D004782:Environmental Health; D006801:Humans; D006920:Hygiene; D007306:Insecticides / Q000009:adverse effects*; D010373:Lice Infestations / Q000517:prevention & control*; D004366:Nonprescription Drugs / Q000627:therapeutic use; D010374:Pediculus; D012449:Safety; D012536:Scalp Dermatoses / Q000517:prevention & control*
D007306:Insecticides; D004366:Nonprescription Drugs