What should you know about CO2 laser treatment for dark spots?

Dark patches on skin can reflect sun-related pigment, inflammation after an injury or rash, hormonal-pattern pigmentation such as Melasma, or an infection such as Tinea Versicolor. A changing, irregular, bleeding, or very different spot may need examination before any cosmetic procedure. Laser is not a substitute for diagnosis.

CO2 resurfacing removes or heats skin layers. That can improve some surface pigment and texture, yet inflammation after treatment can stimulate additional pigment, especially in skin that marks easily. The clinician may recommend topical preparation, sun protection, a gentler procedure, or treatment of an underlying condition first.

Have the area examined and share when it appeared, whether it followed acne or irritation, and any changes in shape or colour. Ask whether a Chemical Peel, Skin Brightening Treatment, or Picosecond Laser Treatment better fits the diagnosis. Avoid tanning, picking, harsh scrubs, and unapproved lightening products before and after treatment.

Use the prescribed cleanser and sunscreen, and expect gradual settling rather than judging the result while the skin is inflamed. Follow the schedule for review if pigment returns or new patches appear.

Arrange prompt assessment for a spot that changes quickly, becomes asymmetric, bleeds, crusts without healing, or develops a new persistent symptom. After treatment, report spreading redness, pus, fever, severe pain, or pigment change that is rapidly worsening.

What is the most likely cause of these patches? Is examination or testing needed before laser? What is my risk of darker or lighter marks, and which preparation and aftercare will reduce irritation?