Hi Dear , Welcome to health care magic team. Understanding your concern. Brief answer - Hyperpigmentation Detailed answer - As per your query pigmentation around face, chin area is because of excessive melanin deposition whenever body gets exposed to sunrays. It could also occur because of hormonal changes , stress. I would suggest you to keep continuing with Zincoderm along with that take few preventive measures which which remove these pigmentation completely. Avoid direct exposure to sunlight , keep your face covered with muslin/ cotton cloth. Whenever go outside use medicated sun screen tancare with high spf. Apply teatree oil / honey dipped in cotton swab over these pigmentation three times a day. Use metarub to wash your face. Take full care of your diet with youghurt must be included in that. Mashed potatoes will absorb these pigments of skin. Apply on daily basis. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari