Freckles: commonly known as “pockmarked face”, which makes many girls who love beauty feel inferior and reluctant to go out. This is a very common disease in outpatient clinics. It usually starts to develop at the age of 4-5 years old, with the majority of females. It gradually increases with age, and is most obvious during adolescence, after which it generally stops increasing and gradually decreases in old age. It occurs on exposed areas such as the forehead, cheeks, and jaw, and is more common on the bridge of the nose and under the eyelids, and can spread to the neck, forearms, and back of the hands in severe cases. Typical lesions are light brown to yellow-brown pinpoint to rice-grain-sized round or round-like spots, isolated but not fused, varying in number, dense and scattered, symmetrically distributed. The number of spots increases and the color deepens in summer, while the opposite is true in winter. Traditional treatment uses liquid nitrogen freezing and chemical peeling method, the lesions are large, the treatment is not complete, and there is a possibility of secondary pigmentation and dotted scars after the operation. The birth of the new laser makes all these problems disappear. It can effectively penetrate the surface layer of skin and reach the pigment mass in the dermal layer of lesion. The laser energy is released in a very short time, and the melanin particles selectively absorb the laser in a very short time and photothermal effect occurs, which causes the melanin particles to burst and disintegrate and metabolize with the removal of human phagocytes, so that the freckles can be cured. Generally, patients can achieve obvious treatment effect after 1-2 times. Age spots: called “age pigment spots”, they are brown patches on the skin of the elderly, which are benign epidermal proliferative tumors, usually appearing on the face, forehead, back, neck, chest, etc., and sometimes on the upper limbs. Age spots are inevitable at a certain age, but some people develop them prematurely in their 30s and 40s due to excessive sun exposure or physical reasons. Laser can also remove the pigments in the age spots and give the skin a clean look. After the laser treatment, patients should eat foods containing vitamin C and E or take vitamin C orally and avoid direct sunlight as much as possible.