Pimples on the pubic area when a girl is menstruating may be caused by vulvar eczema, genital herpes, folliculitis and other diseases, and the patient can take medication and surgical treatment. 1. Vulvovaginal eczema: vulvovaginal eczema may be caused by the patient wearing impermeable underwear, the use of impermeable sanitary napkins and other factors, the patient will appear pubic pimples, itchy symptoms, so the girls menstruation pubic pimples phenomenon will occur. Patients can use glucocorticoid creams such as hydrocortisone butyrate cream, Dinaid cream, tretinoin urea cream as prescribed by the doctor, or calcium-modulated phosphatase inhibitors such as tacrolimus cream and pimecrolimus cream. 2. Genital herpes:Genital herpes is caused by herpes simplex virus infection, patients will appear around the genital blisters, vesicles and other symptoms, so the girls will have pimples on the pubic area during menstruation. Patients can use antiviral drugs such as acyclovir tablets and vasiclovir tablets as prescribed by the doctor, or oral aspirin tablets, acetaminophen tablets and other non-steroidal anti-inflammatory drugs. 3. Folliculitis:Folliculitis is caused by bacterial and other pathogenic infections, the patient will appear red pimples, so the girl will have the symptom of pimples on the pubic area during menstruation. Patients can use antibacterial lotions such as chlorhexidine gluconate solution and povidone-iodine solution as prescribed by the doctor, as well as topical antibiotic ointments such as mupirocin ointment and fusidic acid cream. If necessary, surgical treatment can be taken, mainly incision of the lesion to drain pus and other surgical methods. Girls with symptoms of pimples on the pubic area during menstruation should seek medical attention and follow the doctor’s instructions.