Some people are very strange when they are sick, they cough incessantly during the day, but at night they don’t cough anymore. Generally speaking either the person has a Yin deficiency or it is an internal cough. 1. Yin deficiency. If a person’s yang energy is too strong, it will be relieved by coughing, but not at night. 2. Internal injuries. Some people with dysfunctional internal organs can also cause the above kind of phenomenon. It may have some problems with the liver, lungs, and spleen, and the problems have been present for a longer period of time, like this case will cause internal injury cough. Generally speaking, this cause is hidden for a long time and does not come on easily, but once it does, it will come on fiercely. So, if you have a cough that keeps coming up during the day but not at night, think about it or go to the hospital to see if the two problems mentioned above have occurred. Don’t worry too much when they do occur, because they can both be cured by slow conditioning.