The scientific name for an infestation of head lice is pediculosis.
From the timesunion.com
Popular brands of over-the-counter kits that treat pediculosis include Rid, Nix and Pronto, though there are certainly others.
From the timesunion.com
Pediculosis capitis, or head lice, are sesame seed-size parasites that live on human scalps and feed on blood, causing itching in their hosts.
From the businessweek.com
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Infestation with lice (Pediculus humanus) resulting in severe itching
Pediculosis is an infestation of lice -- blood-feeding ectoparasitic insects of the order Phthiraptera. The condition can occur in almost any species of warm-blooded animal (i.e., mammals and birds), including humans. ...
Lice infestation, typically caused by contact with an infected person or infected bedding. When lice infest the eyelid and eyelashes, they can cause such symptoms as visible lice (white or gray), eggs called nits (white or gray) or feces (reddish-brown), blue bite marks, blepharitis and ...
Infested with lice. See also: Head lice; Pubic lice.