Psoriasis, commonly known as “psoriasis”, is a chronic recurrent skin disease with a high incidence and varying severity of illness. The clinical manifestations are inflammatory papules and plaques of varying sizes, light red in color, often covered with silvery white scales, and with varying degrees of itching. Psoriasis can occur in all parts of the body, either generalized or limited. The pathological changes are hyperproliferation of epidermal cells and inflammatory infiltration of the dermis. The cause of the disease is not well understood, but it is generally believed that it is caused by external environmental factors (such as mental, dietary, infections, trauma, etc.) on a genetic basis. Psoriasis has a long course, is stubborn and difficult to treat, and is prone to recurrence, often bringing great psychological pressure and mental burden to patients. At present, there are many drugs for the treatment of psoriasis, and the advertisements exaggerate their therapeutic effects, but the treatment of psoriasis must emphasize the overall concept of “biological, psychological and social medical model”, and cannot be simply interpreted as “special drugs, package, eradication at once” and other unscientific concepts. The scientific concept should not be simply interpreted as “special medicine, cure, eradicate once and for all”. For the prevention and treatment of this disease, the following points are summarized: 1. Patients should have a correct and complete understanding of the disease and establish confidence in overcoming it. Although psoriasis cannot be cured yet, if the treatment is reasonable and careful adjustment is made, long-term relief can be obtained. 2, the patient is often eager to cure the disease, do not have a disease to seek treatment. In addition, individual doctors are not good and not responsible enough to abuse corticosteroids, immunosuppressants and arsenic and mercury preparations, etc. Although they can get temporary relief, they cause serious side effects and complications to patients, with unimaginable consequences. 3, patients should actively cooperate with doctors, seek effective and sound treatment programs suitable for themselves, and adhere to treatment thoroughly. It is important to know that psoriasis is not healed pathologically when it is clinically healed, and its immune and microcirculatory disorders have not returned to normal. Therefore, it is not advisable to stop medication immediately after the lesions have subsided, and to continue to consolidate treatment for one to two months. 4, the onset of psoriasis is mostly related to the seasons, and preventive treatment can be taken before the prevalent season to prevent recurrence. Winter type is usually in late autumn and early winter, while summer type is appropriate to take preventive treatment in May and June. Generally, it should also last for two months. 5, patients in daily life should constantly adjust the physical and mental environment, life should be regular. Cheerful temperament, avoid anxiety and tension, emotional excitement and unpleasant life events. Pay attention to diet, avoid smoking and alcohol, eat less beef and mutton and spicy stimulating food. Pay attention to warmth, prevent colds and flu, moderate exercise to enhance physical fitness. Pay attention to the protection of skin and avoid trauma. In conclusion, we should understand psoriasis correctly and understand that it is only a chronic skin damage, which can be taken care of with care. No need to worry about your disease, actively cooperate with the doctor’s treatment, you will also have a positive and rich life!