Patients with hereditary freckles can take physical therapy and medication to improve their condition. 1. Physical therapy: patients with hereditary freckles can adopt Q laser, dye laser and intense pulse light, etc. Based on the principle of photothermal, the laser with suitable wavelength, pulse width and energy is released, which can help to blast pigment particles in a short time and accelerate the metabolism of pigment by cells, so as to remove freckles. 2. Medication: For patients with lighter freckle color, they can also follow the doctor’s instruction to use medicines such as trichloroacetic acid or phenol externally, which can corrode the local spots and help to peel off the epidermis, so as to improve the freckle condition. However, because this kind of treatment is not easy to control the peeling depth, prone to hyperpigmentation, scarring and other adverse reactions, it has been discarded clinically. Hereditary freckle patients should avoid excessive sunlight exposure in daily life, and it is recommended to go to regular hospitals and cooperate with doctors for standardized treatment.