Patients with mycosis fungoides have itchy vulva and can use Dacronin. However, bacterial vaginitis, trichomonas vaginitis and senile atrophic vaginitis are not allowed to apply Dacronin. Patients with itchy vulva should always have their vaginal secretions tested. Based on the results of the vaginal secretions test, determine which type of vaginal inflammation is present and then select the right medication for the condition. At the same time, it is important to pay attention to the cleanliness of the vulva, change underwear and underwear regularly, and prohibit the consumption of spicy and stimulating foods. If it is mycosis vaginalis, you can use Dakinin; if it is bacterial vaginitis, you can use metronidazole; if it is trichomoniasis, you can use metronidazole; if it is senile atrophic vaginitis, you can use estrogen.