Psoriasis, also known as psoriasis, causes dry skin and may cause itching. Psoriasis is an immune skin disease with a genetic predisposition that manifests itself as red patches or erythema on the skin, covered with silvery-white scales. In non-progressive or small areas of scaly psoriasis, there may be no noticeable itching. In the rapidly progressive stage of psoriasis, the lesions are in the form of small dots, which may cause mild itching, tingling, and may be accompanied by other discomfort. In stable psoriasis, there may be no itching, or it may cause intense itching if it is mishandled or irritated by other factors. The appearance of clearly defined scaly red spots, papules and plaques on the skin with itching is recommended to go to the dermatology department of the hospital. It is recommended to combine with the doctor’s advice for treatment, which can effectively improve the patient’s symptoms.