There is fire in the lungs in traditional Chinese medicine is known as lung heat, there are false and real, false heat can be seen in dry cough without phlegm, night sweats (abnormal sweating after sleeping, waking up sweating to stop) and other symptoms; real heat can be seen in coughing phlegm thick yellow color, asthma and other symptoms. Lung fever, TCM diagnosis of deficiency and reality: 1. If the lung yin deficiency leads to deficiency heat, often manifested as dry cough without sputum or sputum is small and sticky, accompanied by hot hands and feet (irritability and sultriness), night sweating and other symptoms. 2. Heat evils in the lungs more solid heat, coughing and spitting yellow sputum, dry mouth and thirst, sore throat and other symptoms; lung heat blazing also solid heat, coughing and wheezing, sore throat and so on. Fire in the lungs according to the different symptoms of the deficiency of the surface of the different, should be considered in conjunction with the specific circumstances, such as symptoms, please consult a doctor in a timely manner.