Redness and itching of the vulva in women can be seen in vaginitis, allergies and folliculitis, as follows: i. Vaginitis: the most common cause is having vaginitis, which causes redness and itching of the vulva due to the stimulation of vaginal secretions. The most common cause is vaginitis, due to the irritation of vaginal secretions, which can cause redness and itching of the vulva. The actual fact is that you will be able to get a lot more than just a few of these. When this phenomenon occurs, it is important to go to the hospital as soon as possible to have a gynecological examination. If the leucorrhea is abnormal, you need to take the leucorrhea for laboratory tests and treat it according to the results of the tests. If there is an allergy to the item used, the allergy should be removed immediately. If there is folliculitis, you need to apply anti-inflammatory drugs for treatment.