Redness on both sides of the nose requires careful observation of the skin damage in the area of redness. If the reddened area shows significant dry skin with visible flaking, consider the possibility of seborrheic dermatitis. This condition is a clinical symptom of dry skin around the nose and excessive cortical overflow, which may be accompanied by mild itching, and is related to poor rest, lack of sleep, and mental stress. In severe cases, the condition may appear all over the face and also on the scalp. In addition, after the face fractional CO2 laser will also cause local skin stimulation, non-ablative laser will be on the skin epidermis, the formation of erythema-like changes will form flushing, burning and other uncomfortable symptoms, it is recommended to choose cold water ice packs.