Xiao Chaihu may refer to Xiao Chaihu Tang or Xiao Chaihu Granules, which usually treats the exchanges of cold and heat (the body gets hot and cold at the same time), not just whether it is wind-cold or wind-heat. Xiao Chaihu Tang belongs to traditional Chinese medicine prescription, which has the effect of relieving Shaoyang (treating external heat illnesses in which the evil is between half-expression and half-li), and Xiao Chaihu Granules belongs to proprietary Chinese medicines, which has the effect of relieving the expression of heat and dispersing heat and dispersing the liver and the stomach. Both of these two medicines are used in clinical practice for the treatment of the alternation between cold and heat (the body being hot and cold at the same time), i.e., alternating between fever and chills, and therefore are not purely used for the treatment of wind fever or wind heat. Xiao Chaihu Tang treats diseases such as typhoid fever and shaoyang (one of the six meridians of typhoid fever, which is between the surface and the inside of the body), gynecological stroke, malaria, jaundice, etc. Xiao Chaihu Granules also treats heartburn and vomiting, bitter taste in the mouth and dry throat, and bitter fullness in the chest (a feeling of fullness and discomfort in front of the chest and at the sides of the chest). In the process of taking Xiao Chaihu Granules, patients should avoid taking tonic Chinese medicines at the same time, and abstain from spicy, cold and greasy food, smoking and alcohol. After taking the medicine for 3 days, or during the period of taking the medicine, the symptoms do not improve, or the symptoms worsen, or new serious symptoms such as chest tightness, palpitations (rapid heartbeat, often accompanied by panic), etc. should be immediately stopped, and go to the hospital for consultation. To summarize, patients must use Xiao Chaihu drugs under the guidance of a doctor, do not use on their own, so as not to delay the condition, resulting in adverse effects.