Treating Lentigines in Asian Patients With the Q-switched Alexandrite Laser

摘要

Treatment using the Q-switched Alexandrite would be appropriate for Asian patients with Fitzpatrick skip types III and IV. The authors use either a 3 mm or 4 mm spot size with a low fluence. With the authors' approach, it is essential to direct the spot to the pigmented area and to avoid unaffected skin.The technique involves making a single pass over the target area with minimal overlap. The clinical endpoint for this treatment is immediate, barely-visible whitening. Treatment is usually performed a total of three times every four weeks (Figure 1).The biggest concern is post-inflammatory hyperpigmentation (PIH).4