Hello, As per your case history of hyperpigmentation, my treatment advice is: 1. Avoid sun exposure and use a good sunscreen lotion with SPF more than 30. 2. Apply a Kojic acid cream like Kojivit twice daily on it. 3. Take a vitamin b12 supplement once daily for 3 months. 4. Other treatment options are topical hydroquinone and chemical peeling done by dermatologist. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Harshit Bhachech