1, Exogenous pathogen attacking the lung: In most cases, lung-heat cough is caused by wind-heat pathogen invading the lung, or it may be caused by wind-cold heat and lung-heat toxin. At this time, it is easy to accumulate a lot of internal heat in the lung, resulting in a series of symptoms mainly cough, and it often occurs after lung-heat cold or no cold symptoms.

2, lung dryness and lung injury: lung heat cough may also be caused by lung dryness and lung injury. At the same time, there may be a series of symptoms such as hoarseness in the throat, dry mouth and sore throat, and dry stool, and the tongue coating will become thin and yellow or yellow.

3, low immunity: For children with lung heat cough, it is generally due to the low function of the autoimmune system, and there may be the characteristics of repeated cough attacks.

4. Bad eating habits: If you have bad eating habits for a long time in peacetime, especially if you like to eat too spicy and warm food, such as barbecue, hot pot and various spicy condiments, it may cause the onset of lung heat cough. At this time, even if you are carrying out drug treatment, you need to strengthen diet conditioning at the same time to alleviate the symptoms.