Skin scarring black, mainly due to poor circulation of local blood tissues, in addition, the excessive proliferation of scars and the resulting blackness around the wound, you can through red light irradiation, daily care and other methods. 1. Red light irradiation: red light irradiation has an anti-inflammatory effect, infrared irradiation can accelerate cell metabolism, can promote the growth of granulation tissue, and promote the recovery of the wound, irradiation time is generally about 20-30 minutes, irradiation time should not be too long, so as not to damage the skin. 2. Daily care: avoid strenuous activities, do a good job of local skin cleaning, timely observation of the wound, if the continued blackening should seek medical attention. If the situation does not improve, you should seek medical attention in time to avoid delaying the condition and irreversible damage.