There are many reasons for itching on both sides of the vulvar lips, which may be caused by eczema, fungal infection, allergic reaction, viral infection and other diseases. 1. Eczema: internal and external stimuli caused by a variety of factors local skin eczema, may cause the symptoms of itching on both sides of the lips of the vulva, the acute stage may also cause oozing, rash, vesicles and other symptoms. 2. Fungal infections: various types of fungal infections may cause ringworm, tinea versicolor, etc., which may also cause itching on both sides of the labia externa. 3. Allergic reactions: such as contact dermatitis, drug rash, insect bite dermatitis, hives, etc., may also lead to itching on both sides of the labia. 4. Viral infection: Early symptoms of genital herpes caused by herpes simplex virus infection may also lead to itchy labia nervosa with rashes and blisters. Itchy labia, there may be other reasons, it is recommended to go to the hospital in a timely manner to determine the cause of the disease, and follow the doctor’s instructions for treatment.