Symptoms of cough

summary

Cough is a common symptom of respiratory tract, which is caused by inflammation, foreign body, physical or chemical stimulation of trachea, bronchial mucosa or pleura. It is characterized by glottic closure, respiratory muscle contraction, and elevated intrapulmonary pressure, followed by glottic opening and air jet out of the lung, usually accompanied by sound. Cough has the protective effect of clearing foreign bodies and secretions in respiratory tract. But if the cough continues, from acute to chronic, often bring great pain to patients, such as chest tightness, throat itching, wheezing and so on. Cough can be accompanied by expectoration. Let's talk about the symptoms of cough

Symptoms of cough

1. The nature of cough, cough without phlegm or sputum very little, called dry cough. Dry cough or irritating cough is common in acute or chronic laryngitis, laryngeal cancer, early stage of acute bronchitis, tracheal compression, bronchial foreign body, bronchial tumor, pleural disease, primary pulmonary hypertension and mitral stenosis. Cough with expectoration is called wet cough, which is common in chronic bronchitis, bronchiectasis, pneumonia, lung abscess and cavitary tuberculosis.

2. The time and regularity of cough sudden cough is often caused by inhaling irritant gas or foreign body, lymph node or tumor compressing the tracheal or bronchial bifurcation. Paroxysmal cough can be seen in pertussis, endobronchial tuberculosis and bronchial asthma (variant asthma) with cough as the main symptom. Long term chronic cough, more common in chronic bronchitis, bronchiectasis, pulmonary abscess and tuberculosis. Nocturnal cough is common in patients with left heart failure and pulmonary tuberculosis. The cause of nocturnal cough may be related to the aggravation of nocturnal pulmonary congestion and the increase of vagus nerve excitability.

3. Cough voice refers to the characteristics of cough voice. For example, cough and hoarseness are mostly caused by inflammation of vocal cord or tumor compression of recurrent laryngeal nerve; ② Chick like cough, characterized by continuous paroxysmal severe cough with high-profile inspiratory echo, is more common in pertussis, epiglottis, laryngeal diseases or tracheal compression; ③ Metallic cough is usually caused by direct compression of trachea by mediastinal tumor, aortic aneurysm or bronchial cancer; ④ Cough voice low or weak, seen in severe emphysema, vocal cord paralysis and extreme weakness.

matters needing attention

1. Strengthen exercise, more outdoor activities, improve the body's disease resistance. 2. When the climate changes, change clothes in time to prevent overheating or supercooling. 3. Take less children to crowded public places, less contact with cough patients, reduce the chance of infection. 4. Open windows frequently to circulate fresh air.