《黄帝内经·素问·刺要论》
因此，该刺毫毛腠理的，不要伤及皮肤，若皮肤受伤，就会影响肺脏的正常功能，肺脏功能扰乱后，以致到秋天时，易患温疟病，发生恶寒战栗的症状。
是故刺毫毛腠理无伤皮，皮伤则内动肺，肺动则秋病温疟，泝泝然寒栗。
When inserting into the fine hairs, do not damage the skin, because if the skin is damaged, it will affect the normal function of the lungs. When the function of the lungs is disrupted, it can lead to an easy susceptibility to malaria in the autumn and symptoms of chills and shivering.