The cause of psoriasis is unknown and the mechanism is complex, so there is no good way to prevent it. But what should I pay attention to when I have psoriasis? 1, to pay attention to avoid infection Many patients are upper respiratory tract infection after the rash, therefore, and avoid infection to clear infectious lesions, so clinically, we have given anti-infection treatment to the first cases or relapsed people with recent infections (such as acute pitting psoriasis). However, it is best to prevent the occurrence of infection at an early stage. 2, psoriasis people, especially patients in the acute phase, should not drink alcohol and eat too spicy food, avoid long sun exposure, reduce the stimulation of drugs, and prevent drugs that induce and aggravate psoriasis, such as lithium salts, antimalarials, angiotensin converting enzyme inhibitors, etc. 3, psoriasis is generally divided into four types, of which psoriasis of the common type is generally not oral or intravenous use of glucocorticoid preparations, except in special cases; prevent avoid overtreatment. 4, psoriasis is a disease related to psychological and spiritual factors, clinical treatment at the same time should pay attention to eliminate the patient’s mental trauma, it is recommended that patients live a regular life, can be appropriate travel relaxation, to have confidence. Clinical investigation has such a situation that the clinical treatment effect of psoriasis patients with heavy mental burden is worse than that of psoriasis patients with light mental burden.