Freckles are a relatively common pigmentation problem in clinical practice, and are more prevalent in the female population. It is an autosomal dominant hereditary disease and is greatly affected by sunlight, so many freckle patients have more obvious skin lesions and more serious symptoms in summer. For these patients, laser freckle removal is a very good short-term treatment, which adopts high-energy laser to smash the pigment particles through short pulses to achieve the purpose of removing freckles. After the treatment, the patient’s face can immediately appear redness, swelling, pain, burning and other inflammatory reactions, which need to be immediately given appropriate ice or medical repair masks and other treatments, and the lesions will form scabs in about 5-7 days after the treatment, and the scabs can fall off by themselves in about 7-10 days. After the scabs fall off, the local skin may show light red marks, which may fade away in about 2 weeks. Some patients may also have hyperpigmentation after treatment, if the postoperative care is appropriate, pay attention to sun protection. Hyperpigmentation may subside within 1-2 months and the face will return to normal. At present, Q laser is commonly used in clinic to remove freckles, and its side effects include local bleeding spots, edema, tiny blisters or blood blisters formation, etc. A few of them may have temporary hyperpigmentation and hypopigmentation, and generally return to normal in 2-4 weeks. And the treatment should be strictly sunscreen, appropriate use of sun blocker, most of the patients get improvement after 1-2 courses of treatment.