Using pine pollen works well. I have a serious scar constitution. Six years after the operation, the scar on the knife edge bulged into a ridge, and the surface was smooth and pink, just like a big bug lying there, never daring to go shirtless in summer. After taking pine pollen for 3 months, the bulge began to flatten gradually and the color was close to normal skin. And my friend, not long after the operation, took pine pollen and painted it on the wound. After three months, there was almost no trace. You might as well try.