NOTE: We review our guidelines regularly and this guideline is now past its review date. The content of the guideline below may not reflect the most recent evidence-based practice. Please use with caution.
Lasers are used in various ways at Great Ormond Street Hospital (GOSH) including the treatment of birthmarks and other skin lesions. Carbon dioxide (CO2) lasers work by sending out a concentrated beam of light that can remove raised or scaly areas of skin.