If there are blisters on the vulva, the causes are as follows: First, the most common clinical infection is herpes simplex virus, which causes small localized blisters on the vulva in the clinic, and once the blisters rupture, there will be pain, which is caused by the virus infection. It is recommended to apply acyclovir ointment to the local area for treatment, and during the period of medication until the clinical laboratory tests have not turned negative, is not allowed to have sex, because through sexual contact will be cross-infection. Second, herpes zoster caused by this situation in the clinic will cause severe pain in the vulva, you can take oral painkillers to give pain relief, and can also be coated with acyclovir ointment for treatment. And in the diet, must eat easy to digest food, can not eat stimulating food, so as not to aggravate the local symptoms.