Laser spot removal is more effective than medicated spot removal. Laser spot removal mainly utilizes the selective photothermal effect of laser to smash the local melanin particles, and the destroyed pigment particles can be phagocytosed by macrophages and discharged out of the body. Because of the controllable laser energy and high precision, this treatment method is relatively safe and less damaging to healthy skin, but it generally requires several treatments to reach the ideal effect. The main principle of medicine to remove spots is chemical corrosion, the medicine used is corrosive to the skin, this treatment method is easy to damage the skin, and its depth and scope are not easy to control, and it is very easy to leave pigmentation and scarring, it is generally not recommended to use medicine to remove spots. Patients need to choose regular hospitals for spot removal treatment and avoid blind self-medication, so as not to cause adverse consequences.