Children’s melanin precipitation may be due to long time exposure to ultraviolet rays, genetic factors, can be removed by applying drugs, or take physical therapy and other ways. 1. Topical medication: Vitamin E milk, hydroquinone cream, cumquat cream ointment and other medications can be used externally as prescribed by the doctor in order to inhibit the formation of pigment and promote skin metabolism to achieve the purpose of removing melanin deposits in the skin. 2. Physical therapy: If the skin pigmentation is serious and has a big impact on the appearance, laser treatment and photorejuvenation can be used to break down the skin pigmentation and accelerate the metabolism of melanin, so as to help remove the localized skin pigmentation. If your child has melanin deposits, it is recommended that parents take their children to a regular hospital in time to choose the appropriate treatment under the guidance of a physician, and do not blindly self-medication to avoid adverse reactions.