A parent asks the nurse about head lice (pediculosis capitis) infestation during a visit to the clinic. Which of the following symptoms should the nurse tell the parent is most common in a child...

A parent asks the nurse about head lice (pediculosis capitis) infestation during a visit to the clinic. Which of the following symptoms should the nurse tell the parent is most common in a child infected with head lice?

1. Itching of the scalp.

2. Scaling of the scalp.

3. Serous weeping on the scalp surface.

4. Pinpoint hemorrhagic spots on the scalp surface.