Hello, there are many different reasons which can cause pigmentation on the face. You will need skin analysis & examination to find out why you are having this problem. If your skin tone is on darker side and you are exposed to sunlight then also your face can get tanned. Some times hormonal imbalances or cosmetics or thickening of skin can give rise to this problem. It is better if you seek consultation from a qualified dermatologist. Skin lightening creams and peels will help it to come back to its natural color. Continue sunscreen,use it 30 mins before stepping out in the sun. Reapply after 3 hours. Use umbrella or scarf as extra protection. Increase green leafy veg and orange colored vegetables and fruits like carrots as they are rich sources of carotenoids which protect the skin from sunrays. Hope this helps you.  Best regards, Dr Pinanky Jadhav, Eternis Skin & Hair clinic, Pune www.eternisclinic.com