Patients treated with sulfur ointment for pubic lice are allowed to shower, but only before or at least 2 hours after the medication is administered. Pubic lice are parasitic organisms that live in the pubic area and can cause localized rashes and itching. Sulfur ointment for pubic lice requires shaving all pubic hair, thus destroying the environment for lice to grow, removing lice eggs, and facilitating the efficacy of the medicine. To treat pubic lice, you need to ensure that the affected area is clean and hygienic, so you can wash the affected area by taking a shower before application to facilitate the effect of the drug, or you can take a shower after the drug has worked for at least 2 hours. Sulfur ointment is irritating. Some patients may feel uncomfortable, after applying at least 2 hours can be washed with warm water, do not be too alarmed. The presence of pubic lice should be timely consultation, need to follow the doctor’s instructions to apply the correct sulfur ointment, and daily need to take a shower, change clothes, pay attention to the sex life and so on.