Lice on the head can be completely removed by cleaning the scalp, washing the hair with sulfur soap, and ironing the bedding. Patients should first remove all the hair or cut it as short as possible, which can reduce the living space of lice and make it more convenient to remove lice, and they should usually wash their hair regularly to keep the scalp area clean and sanitary. You can also use 50% centella tincture to rub the scalp and hair, you can also use sulfur soap to wash your head, can be very good at killing lice, you can also use lindane cream to apply, pay attention to the possible side effects such as scalp tingling, children and pregnant women are prohibited. In addition, bedding should be thoroughly disinfected, such as combs, pillowcases, bed sheets, etc., you can boil these items in hot water for ten minutes to achieve the purpose of completely removing lice. If the symptoms are not relieved by lifestyle modification, you should seek medical attention to clarify the cause of the problem and treat it under the guidance of your doctor. You should use medication under the guidance of a doctor and avoid unauthorized use of medication to avoid adverse consequences.