Erythromycin ointment can clinically treat inflammation of the vulva caused by bacterial infection, but it does not play a therapeutic role in eczema and seborrheic dermatitis of the vulva, which need to be treated with other medications. It is advisable to apply erythromycin ointment to the vulva for treatment only after the diagnosis of bacterial infection of the vulva has been confirmed by a doctor’s examination. It is best to wash the vulva with 30% of cleanser and dry it before applying erythromycin ointment, 2-3 times a day, and most of the clinical symptoms will improve significantly in about 3 days. And it is also recommended that women in daily life must pay attention to keep the vulva clean, try to wear tight pants, wear cotton underwear, which will reduce the local skin stimulation, and reduce the occurrence of vulvar inflammation.