Whenever we experience the baptism of a cold, we often have such doubts:
Obviously, the virus has said goodbye, and the body is no longer "enthusiastic", but why does the stubborn cough still follow us, as if we don't want to say goodbye?
Below, let's understand the cause of coughing after a cold, so that you can talk eloquently in front of your friends about why the "cough chain" is difficult to break.
We all know that colds are an extremely common illness that most people experience several times a year. Usually the symptoms of a cold include sneezing, runny nose, sore throat, fever, etc. As the body gradually defeats the virus, these symptoms usually disappear as well. However, coughing is often the last "uninvited guest" to leave. Why does the cough persist even after the cold has healed?
Coughing is actually a defense mechanism of our body to clear phlegm and foreign bodies from the respiratory tract.
When catching a cold, the virus invades our airways, causing inflammation, which stimulates the production of more phlegm. Even after the cold virus has been defeated, it will take some time for the cells of the respiratory tract that have been irritated by the infection to return to normal, during which time they will still overreact and produce extra phlegm.
Another reason why the cough persists is that the body's immune system is highly active during a cold, producing a large number of antibodies and white blood cells to fight the virus. 
When the main battle is over, the immune system does not immediately return to a calm state, but will remain alert, which can also cause the cough to persist.
Interestingly, if we compare coughing to a cleaner in a movie theater, then even if the movie (cold) is over and the audience (virus) leaves, the cleaner will need some time to clean up the battlefield – remove the scattered popcorn (phlegm) and garbage, and make sure the theater (respiratory tract) is clean and tidy again.
How can we relieve cough at this stage?
First of all, it is very important to maintain adequate water intake to dilute phlegm, and drinking warm water or fruit juice containing vitamin C is a good choice. In addition, honey and lemon are also good helpers for natural cough relief.
Secondly, to keep the indoor air moist, you can use a humidifier, which can help reduce dryness in the throat and respiratory tract and reduce irritation.
In addition, moderate moderate exercise can help boost blood circulation and speed up the process, but remember not to overexert yourself.
Over-the-counter cough suppressants may also be considered if the cough lasts too long, but it's best to do so under the guidance of a doctor.
Epilogue. A persistent cough does not necessarily mean that the cold is not getting better, it is more likely to be a natural part of the body's recovery process. However, if the cough is very severe or lasts too long, then it is still best to consult a doctor to rule out other underlying health problems.
Remember, every cough is your body telling you, "I'm still trying to recover, please give me some time and love." "Give yourself enough rest, maintain good habits, and believe that soon, the fresh airways will return and the cough will disappear.