There are many causes of lower body itching in women, most of them are due to vaginitis or vulvovaginitis or even mycoplasma infection. In addition, if there is vulvar leukoplakia or vulvar eczema or allergy to sanitary napkins or underwear, it may also cause symptoms of vulvar itching. It is best to come to the hospital for gynecological examination and routine white belt and culture of mycoplasma, so that the diagnosis can be made and treated under the guidance of the doctor. If it is not convenient to come to the hospital, not a virgin can empirically use medicine, you can use the cleanser to wash the vulva, use metronidazole vaginal gel to plug the vagina for a week, do not have intercourse during the medication, do not eat spicy, stimulating food, wear cotton underwear, do not wear tight pants, use the regular brand of cotton sanitary napkins, if you are allergic to a certain sanitary napkin or underwear, you may need to use hydrocortisone ointment to rub the vulva If you are allergic to certain sanitary napkins or underwear, you may need to apply hydrocortisone ointment to your vulva.