Scars come in all shapes and sizes. Lasers are particularly good at improving red scars, in which they will remove the red color as well as helping to improve the texture of the scar significantly. Keloids, are large thick scars that extend beyond the boundaries of the original wound, and hypertrophic scars are their somewhat smaller cousins. Keloids and hypertrophic scars are often best treated by injecting steroid medicines into them at monthly intervals. This will shrink them considerably, although the first few injections may not make much of a difference, sticking with the monthly injections can lead to dramatic flattening of raised scars.