Rosacea usually refers to rosacea with bruises on the tip of the nose, which can be treated by medication or photoelectricity. 1. Medication: Topical medications include antibiotics such as fusidic acid, erythromycin, benzoyl peroxide, azelaic acid, brimonidine tartrate gel, etc. Systemic medications include anti-microbial agents such as doxycycline, minocycline, isotretinoin, hydroxychloroquine and so on. The use of drugs are required under the guidance of medical professionals to avoid adverse reactions. 2. Photoelectric method: LED light (red light, yellow light), intense pulse light, dye laser and so on have certain effect on the treatment of erythema and capillary dilatation. Patients with rosacea need to go to the hospital in time. After active treatment, the skin can usually return to normal skin color and the prognosis is generally good.