The dark marks after spot spotting will usually fade on their own within 6-9 months. After spot spotting, local skin will form irritating changes and may form temporary hyperpigmentation, which is mainly formed after being stimulated by laser or drugs. This pigmentation will gradually fade and be absorbed through the immune metabolic function. If the patient does not use relevant whitening products or devices to assist in the removal, the dark marks will remain in the body for a long time, usually taking 6-9 months to gradually disappear. If the skin in the spotted area is exposed to direct sunlight during the recovery period, it may last longer. Patients are recommended to apply sunscreen, wear a mask or cover the spotted area with clothes after spotting to avoid the stimulation of UV rays and reduce the duration of the black mark. In addition, patients can also eat more food containing vitamin C, which can also play an auxiliary whitening effect.