First of all, the skin must be cleaned before using the laser therapeutic apparatus to ensure that the laser can penetrate the skin more effectively. Secondly, coating a thin gel helps to improve the penetration of laser. When choosing laser irradiation time and power, it should be adjusted according to personal skin condition and professional advice, and the laser head should be close to the skin to avoid overexposure. Clean the skin in time after treatment and use moisturizing cream or repair cream to promote the recovery of the skin.