Q. A 32-year-old teacher presents with progressively enlarging, depigmented patches on the hands and face over the past six months. The patient reports increased stress at work and is concerned about the cosmetic appearance. There is no associated itching or discomfort, and the patient's medical history is otherwise unremarkable. Physical examination reveals multiple well-demarcated, depigmented macules and patches on the dorsal hands and around the lips, with no signs of inflammation or scaling. What is the most appropriate initial management for this patient?