What are cold and fever

Cold syndrome is the syndrome of excessive yin deficiency and evil, or the syndrome of weak yang qi with cold image as the main manifestation. Therefore, there are two main reasons for the formation of cold syndrome: one is to feel the evil of yin cold, such as cold, rain, taking cold medicine, etc.; the other is the weakness of yang qi of human body and the decrease of warm effect. The main characteristics of cold syndrome are cold, clear and thin. The clinical manifestations mainly include cold and warm, cold limbs, pale complexion, pale tongue, white and smooth fur, light mouth and no thirst, clear and thin sputum, clear and long urine, loose stools and closed pulse. Heat syndrome and its opposite are mainly caused by feeling heat evil or hyperactivity caused by yang excess and yin deficiency. Similar to cold syndrome, there are internal and external factors, mainly feeling heat evil such as high temperature, climate, heat and scorching heat. The second is that the cold evil originally felt gradually enters the interior and turns into heat evil; the second is that it is not an external evil, such as excessive seven emotions turning into fire, unclean diet, the main symptoms caused by accumulated fire are red face and red eyes, hot head and body irritability, dry stool, short red urine, red tongue and yellow fur.