Replied by Ted (Bangkok, Thailand)
Dear Natalia: An old leg burn is difficult to treat, however you can slowly removed them with a mixture of DMSO and water. Depending on your skin sensitivity, the more the DMSO and less water the better. Start with a 50% DMSO and water first. Then rubbing in area of the scar, it will remove very slowly. However, modern laser technology can remove the unsightly scars quite fast.