The hyperpigmentation after scarring can be removed by topical medication or laser, and it is recommended that the patient be guided by the doctor as to which treatment to choose. 1. Topical medication: patients can use topical mucopolysaccharide polysulfate cream, which can be rubbed properly to promote drug absorption. Tyrosinase inhibitors such as hydroquinone cream can also be used. At night, you can also use topical retinoic acid cream and take vitamin C orally. 2. Laser treatment: patients can improve the post-inflammatory hyperpigmentation through laser, such as picosecond laser, Q laser, etc., can achieve better results. For patients with hyperpigmentation after scarring, it is recommended to go to regular hospitals for timely examination and standardized treatment under the guidance of professional doctors.