《伤寒论·辨阳明病脉证并治法》
究其原因，是因为病人脉迟，迟脉主寒，其证属寒湿内郁，所以攻下无效。阳明病，本应当汗出多，却反而无汗，病人身痒好象虫在皮内爬行一样的，这是长期正气虚弱的缘故。
阳明病法多汗，反无汗，其身如虫行皮中状者，此以久虚故也。
The reason for this is because the patient has a slow pulse, slow pulse is the main cold, its evidence belongs to the cold wetness internal depression, so the attack is invalid. Yang Ming disease, should have more sweating, but instead no sweat, the patient itches as if insects are crawling inside the skin is due to long-term deficiency of righteousness.