Photodynamic technology can clinically treat acne, rosacea, flat warts, photoaging (such as roughness, wrinkles), warts, superficial basal cell carcinoma of the skin, Bowen’s disease and many other skin diseases, and skin care after treatment, especially facial care, is crucial. 1.Cleaning: The second day after treatment can be cleaned with water, the water temperature should be cool. 2.Moisturizing: After cleansing, follow the normal skin care steps, starting with lotion, followed by moisturizing lotion or cream, avoiding greasy and heavy moisturizing creams. In addition, you can immediately use a quality assurance of anti-inflammatory moisturizing repair essence. 3, sunscreen: you can use a refreshing sunscreen, it is recommended that at least SPF30+, PA+++. 4.Foundation, isolation cream, BB cream: should not be used and makeup within a week after treatment, if not necessary, use as little as possible. 5, precautions: avoid hot water stimulation, avoid rubbing, massage, avoid dead skin, detoxification, etc.