Hi, about 4 weeks ago I had a skin rejuvenation treatment (elos laser)to lighten what appear to be solar lentigines(?)on my face. It took 6 days to recover(darkening,crusting,flaking) but then my skin looked better with the spots significantly faded. However, approx 2 wks after the treatment the spots started to appear back but now I also have two darker brown patches on each cheek. I took all precautions posttreatment(avoid sun, SPF30+ etc). What could have caused these and will they fade?