intense itching associated with head lice is an allergic reaction to the insect’s saliva.
This reaction typically takes several days or even weeks of consistent feeding to develop. A sudden, isolated itch is more likely due to a dry scalp or a stray hair. What Head Lice Actually Look Like To help you confidently rule them out, it is useful to know the exact physical characteristics of head lice.
Adult head lice are roughly the size of a sesame seed. They have a flat, grayish or tan body that is
