Children with long hair lice can be completely removed by general treatment and medication. 1. General treatment: Wash the hair regularly, shave the hair as short as possible, and also use a fine-toothed comb to comb the hair and comb down the head lice and nits. Head lice are contagious, in the treatment at the same time should pay attention to the bed objects and clothing and other thoroughly disinfected, do not and family members to share the use of personal belongings. 2. Medication: you can choose to use 50% tincture of Parthenol and 25% benzyl benzoate emulsion to apply all over the hair twice a day, and wash the hair with hot water and soap on the third day. The person in direct contact with the patient should be examined and treated at the same time. Children with hair lice should be treated regularly under the guidance of a doctor. All of the above drugs should be used in accordance with the doctor’s instructions, not blindly used by themselves.