If the vulva is long and itchy, it is often due to the following reasons: 1, vulvar warts, will be found in the vulvar skin, mucous membrane junction of gray-white cauliflower-like growth, and accompanied by vulvar itching, vaginal discharge increased, the patient often has a history of high-risk sexual life. It can be treated clinically with laser therapy or surgery, and since the incubation period is four months, sexual intercourse is not allowed within four months. 2. Herpes of the genitalia is often caused by herpes simplex virus infection, which causes small blisters to appear on the vulva and is accompanied by vulvar itching. It is often caused by a decrease in body resistance and cross-infection through sexual contact, so do not have sex during the illness, you can use ribavirin ointment applied to the affected area, will soon relieve the symptoms and achieve the purpose of healing.