Head lice live on the human scalp, requiring warmth to survive. They are most active at night.
Look for small, light-colored eggs (nits) stuck firmly to hair shafts. They resemble small dewdrops and cannot be brushed away. DETECT BED BUGS HEAD LICE
Bed bugs do not live on the human body; they reside in cracks and crevices near where people sleep, coming out to feed, often leaving bites in lines or clusters. Information on Lice and Bed Bugs Head lice live on the human scalp, requiring