The recovery time for blackened skin from burns varies from person to person, and may take 1 to 3 months for some patients, while others may need about half a year to a year for gradual recovery or persistence. Darkening of the skin after scalding is relatively common in clinical practice, usually due to hyperpigmentation caused by the inflammatory reaction of the skin after scalding. The recovery time may be different for each person with different skin type and degree of burns. The degree of burns is mild, usually pay attention to sun protection and skin care, about 1 ~ 3 months, can gradually recover. Some patients have more serious burns and usually do not pay attention to sun protection, resulting in further aggravation of pigmentation. The darkening of the skin may take about half a year to a year to gradually recover or persist. There are individual differences in the recovery time of scalded skin darkening, and it is recommended to pay strict attention to sun protection to prevent hyperpigmentation. If necessary, under the guidance of a doctor to use cumene glycoside cream, hydroquinone cream topical application, but also through physical therapy, such as laser treatment, can promote pigmentation fading.