Hi Dear , As per your query you have problem of inflammatory hyperpigmentation.Well your doctor has prescribed right medicine. Use can start with Kojivt cream which contain kojic acid cream which is very effective and safe for long term use. I would suggest you to wash your face twice a day with cold water and exfoliate lips to remove the dead skin. Drink plenty of water and avoid sun exposure. Also apply vitamin E oil before going to bed at night . If condition doesn t get better in a month then again consult dermatologist . Doctor may recommend chemical peeling. Hope your concern has been resolved. Best Wishes, Dr. Harry Maheshwari