Children with hyperpigmentation can be removed by topical medication, oral medication and physical therapy. 1. Topical medication: Some of the more commonly used decolorizers in the clinic are hydroquinone cream, azelaic acid, which can reduce hyperpigmentation. Can also be combined with all-trans retinoic acid cream, tazarotene gel and other creams to regulate epidermal keratinization, regulate melanin metabolism. Usually pay attention to sunscreen, avoid strong ultraviolet radiation, usually can use some of the fruit acid containing skin care products. 2. Oral medication: Vitamin A can regulate the human epidermal keratinization process, vitamin C can regulate the body’s redox system, vitamin E can be antioxidant to improve the peripheral circulation and cellular metabolism, you can orally take multivitamins, to help hyperpigmentation subside. 3. Physical therapy: common physical methods include intense pulsed light, fractional laser and other methods, such as intense pulsed light, which can be directly irradiated on the surface of the skin. It penetrates into the deeper layers of the skin and selectively acts on the melanin of the skin, thus achieving the purpose of treatment. If the melanin deposition is not obvious, it will gradually subside with age and generally does not need treatment, but if it is more obvious or affects aesthetics, you can go to the hospital and use the correct method to remove it under the guidance of the doctor.