Zhengzhou should go to the local regular dermatology hospital to treat chloasma, and the chloasma on the face should be seen by a professional dermatologist. Don't use drugs privately. Some drugs contain pigments, and indiscriminate use of hormonal drugs can lead to pigmentation. Therefore, it is safer to treat chloasma or go to dermatology for freckle removal. There is a dermatology clinic on Nanyang Road, Jinshui District, Zhengzhou. It is better to see chloasma. The subway bus goes directly, and friends in need can go and have a look.