Freckles are pinpoint to rice-sized light brown spots that appear mainly on the forehead, bridge of the nose and cheeks, and occasionally on the neck, shoulders and back of the hands. Freckles are related to genetics, body type, sun exposure and endocrine disorders. Most freckle patients appear freckle spots in childhood. UV rays from the sun are an important factor in worsening freckles. If the meridians are not blocked, the blood stasis and stagnation will not reach the skin and nourish the skin, and the metabolic waste, harmful substances and melanin in the skin will not be discharged with the normal metabolism of the body, and the freckles will be gradually deposited. This is what Chinese medicine calls “spots on the face and stasis in the body”, and there must be stasis if there are spots, and stasis must be eliminated. The reason why pigmentation is difficult to be cured is that ordinary drugs cannot directly penetrate into the lesion, and it is difficult to remove the pus like tofu slag that adheres to the meridians completely, because most of the patients with pigmentation have some degree of qi and blood deficiency.