If you leave a pit, you must have hurt the dermis. Simple external smearing is of little significance. It is suggested to make a pixel laser, and the effect will be more obvious once and twice. I have a classmate who studies computer, because radiation left many pockmarks, which were made in Weimingshi Plastic Surgery Hospital in Shijiazhuang. The effect is good, but I can't see it now! You can get to know it first.