Scars and hyperpigmentation are two different diseases, want to lighten the scars and hyperpigmentation, need to use separate medication, such as can use compound heparin sodium allantoin gel, polysulfonic acid mucopolysaccharide cream and other drugs to get rid of the scars, can be used to use hydroquinone cream, tretinoin and other drugs to lighten the hyperpigmentation. 1. Scar removal drugs: commonly used scar removal drugs are compound heparin sodium allantoin gel, polysulfonic acid mucopolysaccharide cream and so on. Compound heparin sodium allantoin gel can be used for the treatment of multiple causes of scarring, and polysulfonic acid mucopolysaccharide cream can inhibit the formation of scars and soften scars, both drugs can be used for scar removal. 2. Hydroquinone cream and tretinoin are often used to lighten hyperpigmentation. Both drugs can prevent the activation of tyrosinase and thus inhibit the formation of melanin, and are mainly used for chloasma and post-inflammatory hyperpigmentation. The use of medication must be under the guidance of a doctor, not blindly use the medication by oneself. If the medication is ineffective or serious discomfort occurs after using the medication, you should consult a doctor in time.