Body lice are parasites of pubic lice, which can be categorized into head lice, body lice and pubic lice, and can be treated thoroughly through daily protection and topical medication. 1. Daily protection: Keep clothing and bedding clean and tidy, and boil the changed articles in hot water to prevent the residual eggs. Remove hair, such as pubic hair, hair, body hair, etc., to avoid lice eggs residue. Maintain cleanliness, daily bathing, timely change of clothing. 2. Topical medication: After removing hair from the head and pubic area, apply tincture of Bacopa monnieri and benzyl benzoate milk to kill lice. After three days of application, clean the affected area on the fourth day. The same person should be used together to avoid contagion. The above drugs should be used under the guidance of a physician, the treatment of this disease requires daily protection and medication in conjunction with each other, if you need treatment, please go to a regular hospital.