Hello, Welcome to healthcare magic. I understand from your query that you are having melasma. Melasma occurs in predisposed individuals and factors which could make it worse include sunlight, oral contraceptive pills and thyroid abnormalities. Ban - A - tan and kojivit gel are both good creams for the treatment of melasma. In addition to these, I would suggest you to use a good , broad spectrum sunscreen. Apply the sunscreen every 3-4 hours even i rainy cold weather. Also physically cover yourself with a scarf or carry an umbrella while outdoors. You could also discuss with your dermatologist about chemical peels for better improvement. Have a healthy diet with lot of anti-oxidant rich foods like fruits and vegetables. Hope this helps you. Take care.