Psoriasis (psoriasis) is a recurrent chronic inflammatory skin disease that mainly manifests with erythema, scaling and pustules, mostly on the scalp, extremities and back. 1, psoriasis patients mostly feel local itching and pain in the skin, avoid scratching the plaque or rubbing the diseased skin parts. Avoid deterioration of inflammation. 2, psoriasis patients should use 37-38 ° C water temperature in the shower, the shower time should be controlled at about 20-30 minutes. Avoid using strong alkaline bathing products, avoid tearing the dead skin of the diseased parts when cleaning, and use moisturizing lotion appropriately after the bath to relieve the symptoms of dry skin, or choose exfoliating products in order to remove scales so that the local medication is absorbed well. 3, psoriasis patients should maintain a healthy lifestyle, drink more water, eat more heat and cool the blood, rich in vitamins and trace elements of fruits, vegetables and grains, avoid spicy and stimulating food, should not smoke and drink. In addition, we should avoid trauma and upper respiratory tract infection to avoid triggering psoriasis. Moderate exercise to enhance physical fitness is also an important method to prevent psoriasis. Patients with psoriasis should maintain a good state of mind and optimism, work and rest regularly, ensure sufficient sleep, avoid overwork, avoid excessive mental tension and anxiety, and establish confidence in overcoming the disease.