I have blade cut marks on my hands. It's 3 months old. Is there any other process other than laser treatment to remove the scar.

For older scars like yours, besides laser treatment, you can consider using topical silicone gel sheets or silicone gel. These can help improve the appearance of the scar over time. Make sure to apply them as directed by the manufacturer. Additionally, you can also try using vitamin E oil or creams containing onion extract to help reduce the visibility of the scar. Remember to keep the area well moisturized and protected from the sun to aid in the healing process.