The black marks of scars on the body are considered to be hyperpigmentation, which can be eliminated through medication, laser treatment, chemical peeling therapy and other ways. 1. Medication:Generally, you can use topical depigmenting agent treatment, such as hydroquinone cream, azelaic acid cream, etc., to lighten the melanin. If necessary, oral vitamin C, vitamin E, tranexamic acid and other drugs can help reduce the production of melanin and lighten the pigmentation. 2. Laser treatment: Carbon dioxide laser treatment can be taken, using the high energy generated by the laser, acting on the lesion area, crushing melanin particles, treatment of hyperpigmentation. 3. Chemical peeling therapy: professional concentration of fruit acid, salicylic acid, etc. can be used to carry out chemical peeling auxiliary treatment, which can help to lighten the melanin precipitation. It is recommended that patients with treatment hospitals to regular medical institutions, usually do a good job of sunscreen, avoid direct exposure to ultraviolet radiation, strictly comply with the doctor’s prescription medication, not blindly self-medication.