Itchy vulva caused by Trichomonas vaginalis infection can be treated by applying local metronidazole ointment. 2. Itchy vulva caused by vulvar dystrophy can be treated by applying topical sex hormone drugs such as progesterone ointment and vinpocetine ointment. 3. The company’s main business is to provide a wide range of products and services to the market. Before using the medicine, you need to use warm water or gynecological lotion to clean the vulva and keep it locally clean.