Scar melanin precipitation can generally fade on its own, or you can use medication such as hydroquinone cream, or laser treatment to eliminate. 1. Self-abatement: Scars are prone to the phenomenon of melanin precipitation when recovering, generally with the passage of time will gradually fade, usually in about six months can be restored. Normally, you should avoid sunlight as much as possible to reduce the formation of melanin. 2. Medication: If there is more melanin, you can use sodium heparin cream to alleviate the problem, sodium heparin cream can improve the blood circulation of the skin. Hydroquinone cream can also be used to reduce melanin. 3. Laser treatment: If the melanin does not subside for a long time, you can also consider laser elimination. If the phenomenon of scar melanin is obvious, go to the hospital in time for examination, choose the appropriate treatment under the guidance of the doctor, and follow the doctor’s instructions when using the above drugs.