Laser therapy is a relatively new treatment modality for keloids and hypertrophic scars. In particular, the utilization of specific laser platforms has emerged as a successful strategy in the treatment of symptomatic hypertrophic scars.
The pulsed-dye laser can be effective at flattening keloids and making them look less red. Treatment is safe and not very painful, but several treatment sessions may be needed. Laser light of wavelengths between 1000 and 1500 nm (also known as non-ablative lasers) have been successfully used for reducing keloids and hypertrophic scars. At these wavelengths, the laser energy is not absorbed by the superficial water-containing tissue, allowing deep penetration into the dermis. Non-ablative laser systems create wounds in the dermis, inducing collagen remodeling in the process. Since the epidermis is not disrupted, non-ablative laser systems allow collagen remodeling with minimal morbidity and recovery time.