The more expensive the skin care products, the better. If they are expensive, they can be white. I recommend you to use la roche-posay Whitening Series or Chanel Whitening Series, both of which can whiten your skin. The latter is very expensive, about several thousand yuan, and the former is about one thousand yuan. I don't know how to go to the pit, but there is definitely no way to go to skin care products. You can try micro-shaping. By injecting hyaluronic acid or something, then go to a plastic surgery hospital. They should be able to fix it. I wish you success ~