Pubic lice is not difficult to treat, the reason why it is difficult to treat pubic lice is mainly related to irregular treatment, cross infection, supplies are not thoroughly sterilized. Pubic lice are a kind of parasites, mainly parasitized in the male and female genital parts of the pubic hair and anal body hair under the skin surface, has a strong infectious, pubic lice treatment method is relatively single, pubic lice is difficult to treat is mainly related to the following factors; 1. Treatment is not standardized: after the infection of pubic lice need to be correctly standardized treatment under the guidance of a doctor can be completely cured, no further contact will not recur. The treatment method is mainly the genital area of the pubic hair and body hair around the anus thoroughly removed clean, and then use sulfur ointment localized rubbing. 2. Cross-infection: pubic lice patients need to be treated by both husband and wife, if only one party is treated, it will be re-infected, making it difficult to cure pubic lice. 3. Daily necessities are not thoroughly sterilized: after treatment, the used underwear, towels and contaminated bed sheets and bedding should be sterilized at high temperature and exposed to sunlight to kill the lice bugs and eggs thoroughly before use. Pubic lice patients need to actively seek medical treatment, under the guidance of the doctor to correctly standardize the treatment.