Is it useful to take prophylactic pills for chloasma?

Chloasma is generally categorized into different types such as liver-qi stagnation (poor qi and blood transportation of the liver, emotional depression), liver-kidney yin deficiency (insufficient yin of the liver and kidneys) and qi and blood disorders, etc. People with liver-qi stagnation are useful for taking Easy Pills, while the efficacy of other types will be less obvious.
1. Liver-qi stagnation type chloasma: patients of this type often have dark spots, dull complexion, irritability, sighing and other symptoms, which need to be regulated by dredging the liver and resolving depression (treating depression by dredging the liver’s qi). With the efficacy of detoxifying the liver and relieving depression, regulating qi and strengthening the spleen (regulating qi and strengthening the spleen), Easy Pill is effective in treating chloasma of the liver-qi stagnation type.
The adverse effects and contraindications of this drug are not clear.
2. Chloasma with deficiency of yin in liver and kidney: patients with this type of chloasma often have symptoms such as coffee-colored pigmentation, heat in hands, feet and heart, insomnia and excessive dreaming, and soreness in waist and knees. For this type of chloasma, drugs such as Zhi Bai Di Huang Wan can be used for adjustment.
The adverse effects and contraindications of this drug are not clear.
3. Chloasma with qi and blood disorders: patients with this type of chloasma often have symptoms such as dark spots, whitish color (white and lusterless), fatness and fatigue. It can be regulated and treated with Chinese medicines such as Gui Zhi Fu Ling Wan.
The adverse effects of the drug are not clear, contraindications for pregnant women are prohibited, menstruation should stop taking the drug.
Chloasma patients, it is recommended to consult a professional Chinese medicine practitioner for diagnosis and treatment in a timely manner, and not to use medication on their own.