The skin on both sides of the vulva is considered to be caused by psoriasis, vulvar eczema, lichen planus and other diseases, which need to be treated with medication and physical therapy for the cause of the disease. 1. Psoriasis: psoriasis is considered to be the cause of the skin on both sides of the vulva, the patient can use glucocorticoid drugs under the guidance of the doctor, such as hydrocortisone butyrate ointment, or topical retinoic acid drugs, such as retinoic acid cream and so on. Or take excimer laser, ultraviolet light treatment. 2. Vulvar eczema: the skin on both sides of the vulva may also be caused by vulvar eczema, the patient can follow the doctor’s instructions for the use of topical glucocorticoid drugs, such as hydrocortisone cream, or topical immunosuppressant drugs, such as tacrolimus, pimecrolimus and so on. Or take ultraviolet light therapy, can control the development of the disease. 3. lichen planus: the skin on both sides of the vulva is also considered to be caused by lichen planus, the patient can follow the doctor’s instructions to take oral glucocorticoid drugs, such as prednisone. Or oral retinoids, such as Avitamin A capsules. All of the above drugs should be used in accordance with medical advice. There are many reasons that lead to the skin on both sides of the vulva, it is recommended that patients go to the hospital in a timely manner to find out the cause of the disease under the guidance of the doctor to standardize the treatment.