Cyclosporine treatment of psoriasis suddenly stopping the drug is harmful in many ways, not only does not have a better therapeutic effect on psoriasis, but may lead to the aggravation of the disease, but also lead to the patient’s physiological and psychological impact. Cyclosporine is an immunomodulator that can treat psoriasis caused by immune system disorders. Psoriasis has a long course and tends to recur, making it more difficult to cure. Cyclosporine takes a longer time to work to improve the patient’s condition. Therefore, when cyclosporine is used to treat psoriasis, suddenly stopping the drug will only aggravate the patient’s condition. It will make the patient’s psoriasis more serious and affect his physiology and psychology, leading to a decline in the patient’s quality of life. When patients use cyclosporine to treat psoriasis, they should use the drug under the guidance of a doctor. Cooperate with the use of cyclosporine’s course of treatment to effectively control psoriasis and reduce the possibility of relapse.