Moles with black marks belong to pigmentation, which can be treated by general treatment, medication, physical therapy and other measures. 1. General treatment: keep the skin clean and hygienic, local black marks after mole spotting will usually fade with time, so you can observe it temporarily and pay attention to sun protection. 2. Medication: If the black marks do not fade away or the need for treatment is urgent, azelaic acid, hydroquinone cream, vitamin A acid ointment and other drugs can be used externally to promote melanin metabolism. 3. Physical therapy: If the pigmentation of the above measures does not improve, you can choose physical therapy measures such as laser, through the selective photothermal effect of laser to destroy melanin particles, improve local coloration. It is recommended to go to the hospital for examination first, and follow the doctor’s instructions for medication.