Vaseline also known as petroleum Jelly is good for healing scars.
When using Vaseline for healing scars it will work best when you apply the Vaseline to the injury or wound during the healing process and also after the healing process.
The Vaseline also helps to protect the would and keep it moisturized which helps to promote the healing of your wound.
The Vaseline when applied daily to the would and scar helps reduce the appearance of scars overtime.
If you already have a scar that is a more severe scar then Vaseline cannot really do much to get rid of the scar.
Most larger scars are permanent.
I have a scar where I was stitched up on my left arm by my wrist after a dog bit me when I was 3 years old.
The scar has remained there for 29 years and looks just like it did when it first happened.