For localized spots and acne marks, of which pigmentation spots commonly include freckles, chloasma, age spots, etc., and acne marks are post-inflammatory pigmentation after acne has healed, different treatments need to be taken according to different causes. 1. Facial pigmentation Freckles: At present, photorejuvenation, picosecond and other photoelectric treatments are preferred for the clinical treatment of freckles. In order to prevent further aggravation of localized freckles, it is necessary to do a good job of sun protection to avoid aggravation of localized pigmentation. Melasma: the treatment of melasma is a comprehensive treatment, which can be improved by C6, picosecond and other photoelectric treatments; it can also be improved by using salicylic acid or retinoic acid cream externally, which can renew the skin cells on the surface through chemical exfoliation, so as to achieve the purpose of removing and fading; it can also be improved by using hydroquinone cream, tranexamic acid and other medications externally. Age spots: you can choose laser treatment, topical exfoliative drugs and other measures to achieve the purpose of removing age spots and improve the appearance. 2. Acne marks Acne marks are inflammatory pigmentation left after acne healing, which belongs to acquired pigmentation abnormalities, mainly caused by inflammation stimulating epidermal melanin synthesis of melanin, most of the disease is slow, and some patients will fade away on their own. If necessary, you can cooperate with the doctor to choose laser treatment to lighten the pigmentation. It is recommended that after the appearance of facial spots or acne marks, patients are advised to go to a regular hospital for consultation and standardized treatment under the guidance of a specialist.