Erythromycin ointment can be rubbed on bumps on the vulva when they need anti-infection treatment; it is not useful to rub erythromycin ointment on bumps on the vulva when they do not need anti-infection treatment. Erythromycin ointment is an antibiotic ointment which has anti-infective properties. Erythromycin ointment can be rubbed on vulvar bumps when they are caused by inflammation, vulvar boils, etc., and need anti-infective treatment. Vulvar bumps can get better and slowly subside after rubbing erythromycin ointment. However, vulvar pimples may be caused by other reasons, such as warts, etc., at this time do not need anti-infection treatment, rubbing erythromycin ointment is not very useful, need to be combined with the cause of vulvar pimples to use the appropriate ointment. When there are pimples on the vulva, it is not advisable to use erythromycin ointment indiscriminately, you should go to the regular hospital in a timely manner, and be guided by the doctor to use the medication.