This paper summarized CHEN Tongyun’s experience in treating chloasma from blood.It is believed that qi and blood deficiency

reversal qi movement

cold coagulation and blood astringent

and blood stasis obstructing the meridians and collaterals are the key pathogenesis of chloasma.It is proposed to treat chloasma from blood.Clinical treatment uses four methods treating blood

namely

nourish blood by invigorating the spleen and benefiting qi

tranquillization and supplementing the heart and nourishing the liver and kidney;regulate blood by soothing the liver and regulating qi

ventilating lung qi for lowering adverse qi;warm the blood（yang） by warming the meridians to disperse the cold

warming and tonifying the spleen and kidney;and activate blood circulation by resolving the blood stasis and unblocking the collaterals.