Many diseases may cause vulvar itching. It is commonly caused by vulvodynia and vaginitis. It is recommended to clarify the cause before treatment to avoid poor results and delay. It is recommended not to use erythromycin ointment at will. Causes and treatment of vulvar itch: Patients suffering from vulvar and vaginitis generally have increased secretions, which in turn leads to local stimulation and vulvar itch, especially mycotic and trichomonas vaginitis, where the vulvar itch is more obvious. If it is vulvar lichen planus, which is characterized by hypopigmentation with obvious itching, glucocorticoid ointment can be applied to the vulva to relieve itching, and if necessary, vulvar biopsy can be performed to clarify whether there is a possibility of malignant transformation. The patient should treat the original disease and treat the vulvar itch symptomatically. The patient with vulvar itch usually recommends avoiding unclean sex, ensuring a dry and clean vulva, wearing cotton underwear, not wearing tight clothes, and developing good habits of rest and recreation. The actual fact is that you can find out the cause of the vulva itch and target the medication to achieve satisfactory results, blindly applying erythromycin ointment may affect the treatment effect.