Rosacea red blood line expansion do photorejuvenation generally about 1 month after the effect, the specific time is affected by a number of factors, after the operation to strengthen the care can be better results. Photorejuvenation mainly uses its selective photothermal effect, directly on the dermal lesions to destroy pigmentation spots and abnormal capillaries, and can enhance the dermal blood circulation, effectively improve the facial microcirculation, which can help patients with rosacea to alleviate the redness of the face, but also play a certain degree of skin rejuvenation. It usually takes 1 month to see the effect of photorejuvenation on rosacea, and the specific time varies depending on the severity of the redness, skin condition, and the level of the operating physician. If the patient’s redness expansion symptoms are mild, skin condition is good, absorption ability is strong, generally in 2-3 weeks after the operation can see obvious results; if the redness expansion symptoms are relatively more serious, skin condition is poor, absorption ability is slow, most of the time need to be after three weeks to be able to see the effect. In addition, photorejuvenation operation after attention to strengthen the care can help the skin faster recovery and achieve better therapeutic effect, such as treatment can be used after the collagen surface paste, ice film and other local compresses; the use of cold water to wash your face, pay attention to do a good job of hydration and moisturizing work, out of the strict sunscreen; a light diet, quit smoking and quit drinking, you can consume more vitamin C rich vegetables and fruits, and so on. It should be noted that patients are advised to go to regular hospitals and beauty organizations for photorejuvenation operations to avoid adverse reactions.