Erythromycin ointment can be applied to the vulva, but is not usually used routinely for vaginitis. Different diseases, its medication is different, erythromycin ointment should follow the doctor’s instructions regulated use. Erythromycin ointment is a macrolide antibiotic with antibacterial activity for most gram-positive bacilli, mycoplasma, chlamydia, etc. Erythromycin ointment is usually used in the treatment of suppurative dermatoses such as impetigo and infections of small burns and ulcerated surfaces. However, if it is simple vulvovaginitis or vaginitis, due to inflammatory secretion stimulation resulting in vulvar redness, swelling, broken, you can use erythromycin ointment applied to the vulva, for the elimination of local inflammation, inhibition of infection, has a certain therapeutic effect. However, if the vulvar disease is caused by mycosis vaginalis, trichomonas vaginalis, allergy, etc., then the use of erythromycin ointment generally has no therapeutic effect, and need to target the cause of the relative treatment. During the use of erythromycin ointment, patients may experience local skin burning sensation, itching, redness, swelling and other adverse reactions, erythromycin ointment should be used under the guidance of a doctor to reduce the risk of medication. The skin of the vulva is more sensitive and thin, if lesions occur, you should consult a doctor in time, and the doctor should choose appropriate and effective drugs for treatment, not blindly use drugs, so as not to aggravate the skin damage, or even secondary infection.