The appearance of black chin, consider and post-inflammatory hyperpigmentation factors, which belongs to the acquired pigmentation abnormalities, generally can be considered medication, laser therapy to alleviate. 1. Drug treatment: patients with the symptoms of darkening of the chin, you can use adapalene and other drugs to promote the renewal of epidermal cells, can effectively lighten the local melanin precipitation symptoms. You can also take tranexamic acid orally to inhibit melanin formation and inflammation and promote skin barrier repair. 2. Laser treatment: patients can through a specific wavelength of laser irradiation of local skin, will be absorbed by the skin in the special pigment, the use of photon thermal principle, so as to repair the skin, so that the subcutaneous melanin metabolism decomposition, to achieve the effect of eliminating the darkening of the chin. It is recommended to go out to do a good job of daily sun protection, avoid direct sunlight (to avoid causing solar dermatitis). If the darkening of the chin affects the aesthetic appearance, you should go to the hospital in a timely manner to find out the cause of the disease, under the guidance of the doctor’s treatment.