小青龙汤首见于《伤寒杂病论》。《伤寒论》第40条:“伤寒表不解,心下有水气,干呕,发热而咳,或渴,或利,或噎,或小便不利、少腹满,或喘者,小青龙汤主之。”《金匮要略》痰饮咳嗽病篇第23条曰:“病溢饮者,当发其汗,大青龙汤主之,小青龙汤亦主之。”第35条曰:“咳逆倚息不得卧,小青龙汤主之。”从以上论述可知,本方主要适用于外感风寒,内停水饮之证。风寒束表则恶寒发热,头痛身痛;外寒引动内饮则痰饮上逆,咳嗽气喘,痰多而稀,甚则咳逆倚息不得卧;水饮溢于体表,当汗出 Xiaoqinglongtang was first seen in the “Treatise on Febrile and Miscellaneous Diseases.” Article 40 of “Treatise on Febrile Diseases”: “The typhoid fever is incomprehensible, there is water vapor in the heart, retching, fever and cough, or thirst, or interest, or paralysis, or urination is unfavorable, less abdomen full, or wheezing, Xiaoqing Long The principal of the soup.” “Golden Chamber” sipping cough article Article 23: “Sick and overflowing drinkers, when it made its sweat, Daqinglongtang Lord, Xiaoqinglongtang is also the main.” Article 35 曰: “Coughing against refraction cannot be relied on, Xiaoqinglongtang is the main one.” From the above discussion, it can be seen that this party is mainly applicable to the cold of exogenous feelings and the evidence of stopping drinking water inside. Cold winter fever table is chilly fever, headache and body pain; external cold leads to internal drink is sip drink inverse, cough, asthma, phlegm and more thin, and even if the cough does not rely on reclining; water to drink on the body surface, when sweating