If the hyperpigmentation on the face is caused by sunburn, acne and other facial inflammation, the hyperpigmentation will usually fade over time after the inflammation subsides and no special treatment is generally needed. If the hyperpigmentation is caused by other reasons or does not disappear for a long time, such as discoloration caused by ageing, medication and physical therapy can be used, and the combined application of the two is usually more effective: a. Medication: At present, medication can only lighten the effect of pigmentation, so it needs to be combined with physical therapy to achieve better results. You can use topical creams with certain decolorization effect such as hydroquinone cream, or oral drugs containing vitamin C and vitamin E, such as vitamin C tablets, vitamin E pills, etc. Physical therapy: The applicable treatment methods will be different according to the degree of pigmentation, so you can choose the suitable method under the guidance of doctor. 1.Laser spot therapy: For pigmentation with deeper pigmentation and smaller area, laser spot therapy is more applicable, through laser energy to destroy pigment cells, and then the cell fragments will be gradually engulfed by macrophages in the body to achieve the effect of removing pigmentation, which is safe and reliable. It is safe and reliable and has less damage to normal tissues. 2. Cryotherapy: For pigmentation with larger area, liquid ammonia spray cryotherapy is applied, which uses liquid nitrogen to produce deep low temperature and acts on pigmented tissues to freeze and destroy pigment cells. Usually the frozen tissue will be a thin purple scab within 48 hours, the local application effect is better. Daily attention should be paid to avoid prolonged exposure to sunlight, so as not to aggravate the symptoms of ultraviolet rays, to do a good job of sun protection, apply sunscreen and play umbrella; also pay attention to do a good job of cleaning and care, to do regular maintenance with non-stimulating skin care products. In life, you should work regularly and stay up less to get enough sleep, and eat more fruits and vegetables rich in vitamin C in your daily life, such as kiwi, apples, tomatoes, etc.