The pain of vulva during sex may be caused by local inflammation, and may also be caused by reduced secretion during sex and painful sex caused by local dryness, if the vulva is broken will also cause pain, it is best to go to the hospital for gynecological examination in a timely manner. If the inflammation is caused, you can use anti-inflammatory drugs locally, and at the same time it is recommended that potassium permanganate cleaning and disinfection. If the pain is caused by local dryness, you can use lubricant and it is also recommended to take vitamin B supplements to improve the dryness of the vagina. If it is caused by trauma, you can rub erythromycin externally, and it is recommended to pay attention to local disinfection to avoid infection. It is better not to have intercourse when you have gynecological inflammation, as it may aggravate the inflammation. You can take painkillers for severe vulvar pain.