Due to the poor development of the vulva of little girls, can not cover the urethra or vaginal vestibule, it is easy to cause bacterial invasion, resulting in infantile vaginitis. Little girls with itchy pubic area still need to go to the gynecology department of the hospital and do a leukorrhea secretion examination to diagnose whether there is inflammation, during which the doctor will visually observe whether there is any foreign matter present in the vagina. If only simple vaginitis or vulvovaginitis, available erythromycin ointment, or comfrey ointment to the vulva-vaginal opening of the local application of itching, during this period can not pad diapers, but also more warm water to wash the pubic area.