The skin on the right side of the vagina is a little thick and itchy, and the common clinical causes are eczema, neurodermatitis, dermatophytosis and so on. 1. eczema: the situation refers to a chronic inflammatory itchy skin disease, which is related to heredity, allergen stimulation, environmental influences and other factors, clinical manifestations for the affected areas of erythema, edema, papules, etc., accompanied by itching and other symptoms. 2. Neurodermatitis: the case refers to a common to intense itching as the main manifestation of skin diseases, its onset and psycho-neurological factors are closely related to the clinical manifestations of the affected areas of the emergence of several flat papules fusion of mossy skin lesions. 3. dermatophytosis: this refers to a common infectious skin disease caused by dermatophyte infection, which is usually associated with direct contact with diseased populations or indirect contact with pollutants, clinical manifestations for the affected areas of erythema, pimples and other lesions, as well as obvious itching symptoms. If you have symptoms, go to the dermatology department of the hospital as soon as possible, and avoid sexual intercourse and keep your private parts hygienic during the treatment period.