Psoriasis, or psoriasis, is not neurodermatitis; they are different diseases. Psoriasis is a chronic, inflammatory, recurrent skin disease related to immunity, which can occur at all ages, and typically manifests itself as a well-defined erythematous spot or plaque on the skin surface, which is covered with layers of silvery-white scales. Neurodermatitis is a skin disease closely related to psycho-neurological factors, manifested by the appearance of normal skin color or reddish flat papules, smooth surface or a small amount of scales, the affected area of the skin is dry, thickened, with scratches on the surface and hyperpigmentation, accompanied by a bout of intense itching sensation, especially obvious at night. In summary, psoriasis and neurodermatitis are two different diseases. It is recommended that patients go to a regular hospital, diagnosed by a professional doctor, improve the relevant examination for targeted treatment.