For the redness left by rosacea, it can be relieved by topical medication, physical therapy and home care. 1. Topical medication: Adrenoceptor agonists can reduce the persistent erythema and redness in the mid-face to a certain extent, and 0.03% Brimonidine Tartrate gel is commonly used. 2. Physical therapy: Physical therapy such as intense pulsed light can be used to improve the symptoms of erythema and capillary dilatation. Of course, pulsed dye laser can also be used to improve erythema and capillary dilatation, but there will be purpura and secondary hyperpigmentation and other adverse reactions. 3. Family care: Rosacea patients will feel embarrassed and anxious because of their appearance. Patients should do a good job of self-regulation and dare to express their inner thoughts and feelings, and their family members should care more about the patients and provide them with guidance to enhance their confidence. At the same time, avoid stimulating food, high temperature environment. All the above medications should be used under the guidance of a specialist, avoid self-medication to avoid adverse effects.