Q-switched laser therapy is the best method to treat brown-cyan nevus. The principle of selective photothermal absorption of Q-switched laser acts on the pigment particles deposited in dermis. Through its powerful instantaneous power and highly concentrated laser energy, the pigment particles are directly gasified or crushed, and the melanin particles are swallowed by phagocytes and discharged through lymphoid tissues, without affecting the surrounding normal tissues, thus achieving good effects of definite curative effect, no injury, no scar, little pain and safe treatment. The more thorough phagocytosis of melanin particles by phagocytes, the better the effect. Generally, it needs to be done 3-5 times with an interval of 3 months.

Beijing Zhongguancun hospital plastic beauty center