Hi Dear, Understanding your concern. As per your query you have symptoms of freckles on nose and cheeks which are small flat brown marks arising on the face and other sun exposed areas. Need not to worry, these are harmless and can be easily treatable. Yes Kojic acid is very safe as it is extract of mushrooms. Glycol and photoban are also very effective for freckles. Exposure to sun causes UV rays trigger melanocytes to produce excess melanin which causes freckles so you should avoid sun exposure. You should consult dermatologist once as well if it keeps on persisting because it depends upon the severity of condition as well. Give cold compresses to the affected area twice a day . Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari