The first thing to do with vulvar itch is to eliminate the cause, eliminate the local or systemic factors that cause itching, such as trichomonas infection, you have to wash with methotrexate or metronidazole soak and wash. If the mold infection is present, apply clotrimazole or dacrynic acid. If vulvar itching is caused by diabetes, make sure to control blood sugar within the standard range for vulvar itching to be relieved. Topical and internal medications can be used at the same time. In addition, pay attention to keep the vulva clean and dry during menstruation, do not scratch, do not wash and scald with hot water, and do not use soap. If there is an infection, you can take a sitz bath with potassium permanganate solution. However, local scrubbing must be strictly forbidden, and loose underwear should be worn. Usually avoid smoking, alcohol, spicy food and allergy medications. If there is already an infection, you can use 1:5000 potassium permanganate solution to soak and rinse, which is very effective.