4.1.5. Assessment of the Safety of the Device
erythema, swelling
HYPOPIGMENTATION, ERYTHEMA, HYPERPIGMENTATION
At every visit, patients underwent a physical examination to assess safety outcomes. Patients also were asked to report side effects, such as erythema, swelling, blistering, hyperpigmentation, or hypopigmentation, during and after treatment. The investigators categorized the degree of erythema and burning into four grades: none, mild, moderate, or severe.