Dr. Bernadette Carr answers your questions on head lice and dry eyes

My two children recently had head lice. Is there any way to prevent their getting head lice in the future?

Head lice are very common and with treatment they will usually clear. Head lice are caused due to infestation by the insects Pediculus capitis. Although most common in children, they can affect people of all ages.

Head lice are tiny insects which cling to strands of hair and are passed by hair-to-hair contact. They are not a sign of either dirty hair or poor hygiene. There may be no symptoms, as not everyone will develop an itchy scalp.