The patient is likely to have ### Hair Disease: Head Lice ### Disease Description: Head lice are tiny insects that live on the scalp, feeding on human blood. They lay eggs, known as nits, at the base of the hair shaft. ### Severity of Disease: Mild The patient should use ### Medication: Pyrethrin ### Medication Description: Pyrethrin is a natural insecticide made from the chrysanthemum flower. Pyrethrins are safe and effective when used as directed. Pyrethrins generally should not be used by persons who are allergic to chrysanthemums or ragweed. ### Duration: 5 days ### Side Effects: Skin irritation, Itching, Tingling sensation