Erythromycin ointment is still effective in the treatment of itching due to local inflammation of the vulva, but it should be noted that the reason for itching of the vulva, in addition to local inflammation, there will be allergies that will cause local itching. Therefore, at this time, the effect of using erythromycin ointment alone is not ideal. It is recommended that erythromycin ointment and mometasone ointment can be used alternately to effectively treat vulvar itching. We should also pay attention to the causes of vulvar itching and exclude the vulvar itching caused by increased discharge due to vaginal inflammation, such as vulvovaginal pseudomonal yeast disease, bacterial vaginosis, mycoplasma, chlamydia infection and trichomonas infection, all of which can lead to vulvar itching. It is recommended that clinical medication be given after the cause of the disease has been identified.