There is no such thing as the most effective way to remove black marks on the skin. Black marks on the skin are generally considered to be post-inflammatory hyperpigmentation, and patients are advised to take medication and physical therapy to improve them. 1. medication: for people with black marks on the skin, it is recommended to apply hydroquinone, deoxy arbutin and other drugs as prescribed by the doctor, which can decolorize the black marks. In addition, you can also use vitamin C, azelaic acid, tranexamic acid and other drugs, can reduce and eliminate the black marks on the skin. 2. Physical therapy: for people with black marks on the skin, you can also choose laser treatment, such as fractional laser, photorejuvenation, picosecond laser, etc., based on the photothermal effect of the melanin particles in the affected skin to break up, which can play a role in fading or eliminating the role of black marks. There are more ways to remove the black marks on the skin, it is recommended to go to a regular hospital, under the guidance of the doctor, choose the appropriate way.