If a female patient has a vulvar infection, she needs to choose the appropriate treatment according to the specific circumstances of the lesion. If the patient has folliculitis in the area covered by pubic hair, local disinfection is required and erythromycin ointment is used for local application. If the patient is suffering from vaginitis caused by mycoplasma or chlamydia, macrolide antibiotics such as erythromycin and azithromycin can be used for the treatment of the disease. The treatment plan differs depending on the patient’s condition and the pathogen causing the disease.