Itchy pubic hair at night may be related to eczema, vulvovaginitis, pubic lice disease, vaginitis, etc., and should be treated accordingly after consulting doctor in time to clarify the cause. 1. Eczema: when the vulva is in a hot and humid environment for a long time, it is easy to lead to eczema and itchy pubic hair, which can be manifested as erythema, papule and oozing. At this time, we should try to change the underwear and keep the vulva fresh and breathable, use warm water to clean the pubic hair area before going to bed, if it is still not relieved, it is recommended to consult a doctor in a timely manner, and reasonably apply the medication, such as oral loratadine and so on. 2. Vulvovaginitis: bacterial infection may occur in the vulva, vulvovaginitis, itchy pubic hair, this time, we should consult a doctor in time, to clarify the specific type of vulvovaginitis to use medication, such as topical application of mupirocin ointment. 3. Pubic lice disease: if you find pubic hair with pubic lice or white eggs, this can be considered as pubic lice disease, need to be under the guidance of the doctor for insecticidal treatment, such as topical application of 50% tincture of Parthenium, it is recommended that the pubic hair will be eliminated, the effect is better. 4. Vaginitis: If there is vaginal discharge, it will also stimulate the vulva to cause itching, at this time you need to go to the hospital to check the vaginal discharge, clear vaginitis type, specifically what type of bacterial infection, and then under the guidance of the doctor for medication. The above symptoms are recommended to consult a doctor in time, the above drugs should be used in accordance with the doctor’s instructions.