With adequate protection and avoidance of the sun, the hyperpigmentation spontaneously fades over time. An allergic contact dermatitis may occasionally result from the prescribed topical antibiotic, as may irritant dermatitis from the dressing adhesive. Treated scars are less erythematous and flatter, and exhibit an appearance similar to the normal surrounding skin. Optimal inter-treatment intervals of 6 to 8 weeks are necessary to allow for adequate skin healing between laser sessions. The clinical appearance, surface texture, pliability, and symptoms of scars can improve following a few treatment sessions.
Results are long-lasting and scar recurrences are rare.
The ease of treatment enhances viability and patient acceptance. Although the exact mechanism of action responsible for the laser's effects is unknown, laser stimulated release of histamine or other factors may play an integral role in scar fibroblast activity.