Small circle triage table
Department of Respiratory and Critical Care Medicine
Zhang Nofu
The First Affiliated Hospital of Guangzhou Medical University Vice President
Chief Physician of the Department of Respiratory and Critical Care Medicine
Asked
Why do I keep coughing after "Yangkang"?
Many people keep coughing, coughing, coughing, coughing...
Whether it is the new coronavirus or a common cold, one of the symptoms of respiratory tract infection is coughing. Even if the symptoms turn negative, some people will still cough for a period of time.
The respiratory tract frequently "negotiates" with the outside world and is very sensitive to stimuli such as cold, heat, dryness, and infection.
When the airway is stimulated, nerve reflexes cause the human body to produce a series of actions, which is the protective defense mechanism of the lungs.
Therefore, coughing does not necessarily mean that you are sick, and coughing when you are sick is not necessarily a bad thing. It can help people expel germs from the body.
Coughing after infection is actually a respiratory symptom caused by the repair process of airway inflammation.
Some people who have "turned negative" may still have cough symptoms. This is because the virus replicates in large numbers in the upper respiratory tract, causing destruction of mucosal cells in the respiratory tract. At the same time, the body's immune cells will also gather here to eliminate the virus. After the immune cells complete their tasks, they will naturally metabolize and die. Together with these cells destroyed by the virus, they will become garbage in the body. The respiratory tract will secrete some mucus to form phlegm, which is expelled through coughing.
In fact, coughing is a recovery process, a process of cleaning the "battlefield" and repairing the airway. People who recover slowly don't have to worry too much.
asked
Behind the common coughs, there may be five major respiratory diseases
1. Special "culprits": allergies
Pollen, tiny particles in the air, bugs, dust mites, smoke, dog hair, cat hair, etc. are all common allergens in life. People who are allergic to them may have their airways constrict or spasm when inhaled, causing coughing.
2. The hard-to-find “culprit”: cough variant asthma
Common asthma has dyspnea, wheezing, chest tightness, and shortness of breath as typical symptoms, but cough variant asthma often has cough as the main manifestation. This is caused by spasm in the airways, increased mucus secretion, swelling of the mucous membrane, and narrowing of the lumen when exposed to certain irritating factors.
3. Hidden "killer": pneumonia
Pneumonia is common in the elderly with weak constitutions and is very dangerous. According to statistics, pneumonia in the elderly can account for 50% of the final deaths of the elderly, and is even known as "the last straw for the elderly." But pneumonia cough is very insidious, and even if the cough symptoms are not severe, the condition can be dangerous.
4. The silent "invisible killer": COPD COPD is a chronic airway inflammatory disease in which respiratory airflow is blocked due to structural changes such as airway stenosis or emphysema . Its prevalence, disability and mortality rates are all very high. According to statistics, the number of COPD patients in my country is estimated to be close to 100 million by 2018, and it has become the third leading cause of death among Chinese residents.
5. The dangerous "culprit": lung cancer
Lung cancer has ranked first in morbidity and mortality for many years. Many people are already in the middle and late stages of lung cancer when they are diagnosed, but coughs, especially irritating coughs, are likely to be early warning signs of lung cancer.
asked
is it right to take cough medicine whenever you cough?
It is unwise to rush to take medication as soon as you cough. You should first find the cause based on the symptoms. If you are unable to identify the cause of your illness, or if your cough does not improve after taking cough medicine for a few days, you should seek medical advice promptly.
(cctv life circle)
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