Dry, flaky skin on the vulva is most likely a sign of dermatitis and eczema, which may be related to allergic stimulation, as well as psycho-neurological factors or diet. The treatment can be oral cetirizine tablets for anti-allergy treatment and topical application of hydrocortisone butyrate cream for anti-inflammatory treatment. You should not eat spicy and irritating food and wear cotton loose underwear to avoid frictional stimulation. In addition, sometimes it may be a simple flaking of the skin, you can also use topical moisturizing creams, such as vitamin E cream to improve the clinical symptoms.