It usually takes 1 to 2 months for chloasma treatment to be effective. The severity and duration of chloasma are different, and the speed of effect is different. For mild cases, it usually takes 1 to 2 months to have obvious reduction. For melasma with longer time and more serious condition, sometimes it takes about half a year to have obvious changes. Because the severity of individual’s condition is different, the effect of taking medication is also different, how long it takes to see the effect needs to be seen after using the medication to see the effect. Chloasma is mostly caused by liver depression and stagnation of Qi, blood stasis, spleen deficiency and Qi and blood deficiency. It is recommended to use medication under doctor’s guidance, and how long it takes to see the effect needs to be judged after a period of treatment and follow-up to see how the body recovers.