Laser is currently the most ideal method to treat freckles. In the treatment of freckles, the principle of laser treatment for freckles is to use high-intensity light beam with specific wavelength to be absorbed by pigments or tissues in the skin. The laser breaks up the pigment substances deposited in the skin to break them down in nanometer time, and promotes the circulation of the basal skin to reduce the thermal damage effect of the freckle treatment on the surrounding skin. When the pigment particles are gradually absorbed by the body, the color fades and finally disappears completely after several treatments of freckles. Laser freckle treatment is safe, less painful, no scarring and has a rejuvenating effect. Before and after laser freckle treatment, you must pay attention to avoiding light and sunlight. Avoid all kinds of chemical or mechanical stimulation for 1 week before and after laser freckle treatment.