I must remind you of one thing. You should treat the root cause. This is not only a problem of acne, but also a problem of melanin deposition and long spots, which is a serious endocrine disorder. You should first go to a regular third-class first-class hospital to check the six hormones on an empty stomach and see a doctor. When your body's hormones are balanced and there are no spots and acne, consider laser treatment. And I personally don't recommend laser treatment, because the risk is great, and not everyone is suitable for laser treatment of every kind of spots. Depending on what spot you are, you can treat it in different ways. There are many freckle removing technologies, and laser is just one of them. Also, it's easy to say that 80% of acne marks will disappear by themselves after endocrine is cured, and if you want to be a part of acne scars, they will disappear by themselves.