If the vulva or vagina suddenly feels painful like pins and needles, it is often caused by local inflammation and small fissures can be seen in the mucous membrane or the skin of the vulva. The main reason for this is the damage to the mucous membrane caused by acute inflammation. You can keep the area clean by washing the vulva with 30% of cleanser or taking a sitz bath 1-2 times a day to help absorb the inflammation. It is also recommended not to drink alcohol, eat spicy and sour food, or have sex during this period. It is recommended to change underwear regularly and put the washed underwear in the sun to sterilize and disinfect them. If after the above treatment, you still do not see good, you can go to the hospital for further examination. According to the results of the routine laboratory tests of the white belt, to understand the causative bacteria, and then give the appropriate drugs for treatment.