Lie on your back every night, press your hands on your navel, and massage clockwise 100-200 times, which will help promote blood circulation and detoxify and help intestinal peristalsis. It is effective for chloasma caused by constipation, but it should be persisted. If you want to quickly eliminate chloasma, the effect of using traditional Chinese medicine is very good. I recommend "High Efficiency Empowering Ointment" for external use, which has obvious effect on chloasma and does not rebound. Taobao sells them.