What are the signs and symptoms of head lice infestation?

" Tickling feeling of something moving in the hair.
" Itching, caused by an allergic reaction to the bites.
" Irritability.
" Sores on the head caused by scratching. These sores can sometimes become infected.

People with headlice will have an itchy scalp and often scratch their heads. Scratch marks or a rash can be a sign. However, not all children will complain of itchy heads. Headline can also disturb sleep.

The itching is due to sensitization to the louse saliva, which may take up to three months to develop after initial infestation.

Secondary infection (with bacteria) due to scratching may develop and cause sores that discharge pus.

Finding the headlice is the only way to confirm an infection. The egg cases may persists after the lice have been killed and do not necessarily indicate active lice infestation.

Look for headlice around the hairline or at the back of the neck, behind the ears, and on the crown.

Parents are advised to check their children's hair once a week for signs of lice.