When there are head lice, it can be solved by killing insects, paying attention to hygiene and preventing contact. 1. Insecticide: head lice patients can use 25% benzoic acid bianthyl ester emulsion, 50% bacitracin tincture, 1% diclofenac pyrethrum or 0.9% multi-bactericidalin coated with hair to reduce head lice, which should be used strictly under the guidance of a doctor. 2. Pay attention to hygiene: patients should pay attention to personal hygiene, diligent cleaning of intimate apparel, diligent washing of hair, washing bed sheets and covers to prevent head lice. Contact with the infected person’s clothing can be steamed, dry heat, ironing and other methods to eliminate lice. 3. Prevent contact: patients with head lice should pay attention to good isolation, try to avoid contact with others to avoid infection. It is also important to avoid contact with other people infected with head lice. Head lice lead to inflammation of the scalp and other parts of the scalp, but also under the guidance of the doctor for symptomatic treatment.