yǒu xiē zhōng yào tiē lǐ huì tiān jiā ài yè yóu, yòng lái gǎi shàn jú bù xuè yè xún huán.

有些中药贴里会添加艾叶油，用来改善局部血液循环。

Some traditional Chinese medicine plasters contain mugwort leaf oil to improve local blood circulation.