Abstract: Rosacea is a chronic inflammatory skin disease mainly involving the middle face. The exact etiology and pathogenesis have not been fully elucidated, and the clinical treatment is difficult. Although the previous topical drugs and systematic oral drugs have some effects on erythematotelangiectatic rosacea (ETR), they have a long medication cycle, slow onset, and are easy to rebound and relapse. In particular, the subjective symptoms such as flushing and burning are not significantly improved. The compliance and satisfaction of patients are poor and low, and patients are prone to anxiety, depression and other psychological problems. In recent years, with the widespread application of pulsed dye laser, intense pulsed light, Nd:YAG laser, KTP laser, Pro-Yellow laser, photobiomodulation therapy and other photoelectric technologies in clinical treatment of ETR, the options showed a wider range, the overall therapeutic effects are promoted, the satisfactions of both doctors and patients are improved. This article reviews the application of various photoelectric techniques in the treatment of ETR.
Key words: rosacea; erythema; vasodilation; laser; photobiomodulation
（Acta Laser Biology Sinica, 2022, 31(4): 303-310）