Q-switched Alexandrite laser is effective in the treatment of nevus of Ota, seborrheic keratosis, tattoo, and naevus fusco-caeruleus zygomaticus, but has limited efficacy for cafe-au-lait-spots, lentigo, naevus of Ito, and spilus naevus.

• Q开关紫翠宝石激光对太田痣、雀斑、文身、脂溢性角化、颧部褐青色痣治疗效果好,对伊藤痣、雀斑样痣、斑痣及咖啡斑有一定疗效。