What Are the Causes of a Dry Hacking Cough?

It can be seen in acute pharyngitis, bronchitis, early tuberculosis, and pleurisy due to visceral dysfunction, such as loss of lung yin, loss of moistening, and inversion of qi; or lack of lung qi, loss of cleanup; or spleen deficiency, loss of moisture Sputum, stained on the lungs, the lungs are not declared; or liver qi stagnation, qi stagnation and fire, the fire burns the lungs, hindering the surrender; or kidney deficiency, the uptake is not right, and the qi upside is followed by physical or chemical stimulation or Parasites migrate to the lungs, as well as the deterioration of defensive functions in old age and autonomic dysfunction, which can cause cough.

Dry cough

Cough Cough is a reflex that eliminates airway obstructions or foreign bodies. When you cough, first inhale deeply, close the glottis, and then make a strong and powerful inhalation to make the internal pressure of the lungs rise sharply, then suddenly open the glottis, exhale quickly rush out under strong pressure, foreign bodies or secretions in the respiratory tract The material is also discharged. Therefore, cough can play a role in cleaning the respiratory tract. No sputum is a dry cough.

Affected area

chest

Related diseases

Asthmatic bronchitis pneumonia idiopathic obstructive bronchiolitis with organizing pneumonia in children acute bronchitis acute trachea-bronchitis chronic bronchitis pulmonary tuberculosis respiratory bronchiolitis interstitial lung disease acute bronchitis acute tracheobronchiolitis elderly elderly chronic Bronchitis in children wheezing-like bronchitis in children with acute laryngotrache bronchitis in children with acute tracheobronchiolitis in children with chronic bronchitis in children with bronchiolitis in lungs and coughs in cold drinks coughs in chronic cough in sputum and insomnia in colds

Related symptoms

Paroxysmal cough dry cough nodule spasm cough ulcer wet cough prolapse

Affiliated Department

Respiratory Medicine

Related inspections

Tuberculin intradermal test

It can be seen in acute pharyngitis, bronchitis, early tuberculosis, and pleurisy due to visceral dysfunction, such as loss of lung yin, loss of moistening, and inversion of qi; or lack of lung qi, loss of cleanup; or spleen deficiency, loss of wetness Sputum, stained on the lungs, the lungs are not declared; or liver qi stagnation, qi stagnation and fire, the fire burns the lungs, hindering the surrender; or kidney deficiency, the uptake is not right, and the qi upside is followed by physical or chemical stimulation or Parasites migrate to the lungs, as well as the deterioration of defensive functions in old age and autonomic dysfunction, which can cause cough.

No sputum or very little sputum when coughing.

an examination

1. Induced sputum cytology: Cytologically elevated eosinophils are an indicator of eosinophilic bronchitis. Sputum was induced by ultrasonic nebulization with hypertonic saline.

2. Imaging: X-ray chest radiography can determine the location, scope, and shape of lung lesions, and even its nature, to obtain preliminary, sexual and related rooms. X-ray chest radiographs can be used as a routine cough. If organic lesions are found, they are related according to the characteristics of the lesions.

3. Chest CT: helps to find lung lesions before and after the mediastinum, small nodules in the lung, enlarged mediastinal lymph nodes, and smaller tumors in the marginal lung field. High-resolution CT is helpful for early-stage lung disease and atypical bronchiectasis.

4. Ventilation function and bronchodilatation test: can identify and obstruct airway obstructive diseases, such as asthma, bronchitis, and airway tumors. Routine lung function, positive challenge test helps CVA.

5. Fiber bronchoscopy: can be effective for pathological changes in the trachea, such as lung cancer, foreign bodies, endometrial tuberculosis and so on.

6. 24h pH monitoring of the esophagus: determining the presence of gastric-esophageal reflux is the most effective method for GERC. Dynamic monitoring of esophageal pH changes, 6 parameters such as the number of 24-hour esophageal pH4, the longest reflux, and the percentage of esophageal pH4 in the monitoring were obtained. The backflow correlation is recorded in real time to obtain the correlation probability (SAP) of reflux and cough. Reflux phase with cough.

7. Cough sensitivity: the subject inhales a certain amount of stimulant aerosol particles by aerosolization, which stimulates the corresponding cough sensor to induce cough, and the concentration of inhalant is used as an index of cough sensitivity. Capsaicin inhalation is commonly used for cough challenge tests. Increased cough sensitivity is common in AC, EB, and GERC.

8. Others: 1) Increased eosinophils in peripheral blood indicate parasitic infection and allergic disease. 2) Allergen skin test and serum-specific IgE measurement are helpful for allergic diseases and identification of allergens.

Differential diagnosis of dry cough:

1. Wet cough: When the cough is accompanied by sputum, it is called wet cough. There is a small amount of secretions in the respiratory tract under normal circumstances. When inflammation occurs in the respiratory tract, the secretions increase greatly. Wet cough is often caused by various infectious diseases of the respiratory system. .

2. Spastic cough: Spastic cough is manifested as severe coughing. A coughing sound is associated with a coughing. A coughing can last from ten to several dozen sounds for a long time. The coughing of the face and neck is red when coughing, and the breathing is affected. Inhalation of cough often requires deep inhalation. Severe cough often causes glottic spasm, and sounds like chicken roar. Sustained and severe cough often causes nausea. After a short period of cough, it is quiet for a while, and then coughing again, which can cause children's tongue Lace ulcers, subconjunctival hemorrhage, severe umbilical hernia, inguinal hernia and prolapse of the anus due to increased abdominal pressure when coughing, spastic cough are common in pertussis, parapertussis and some adenovirus infections.

3. Paroxysmal cough: Paroxysmal cough occurs intermittently and there is no continuous state. Paroxysmal cough is a description of a form of seizures without a cause, so it does not make any sense. In fact, most paroxysmal coughs are allergic coughs.

No sputum or very little sputum when coughing.

an examination

1. Induced sputum cytology: Cytologically elevated eosinophils are an indicator of eosinophilic bronchitis. Sputum was induced by ultrasonic nebulization with hypertonic saline.

2. Imaging: X-ray chest radiography can determine the location, scope, and shape of lung lesions, and even its nature, to obtain preliminary, sexual and related rooms. X-ray chest radiographs can be used as a routine cough. If organic lesions are found, they are related according to the characteristics of the lesions.

3. Chest CT: helps to find lung lesions before and after the mediastinum, small nodules in the lung, enlarged mediastinal lymph nodes, and smaller tumors in the marginal lung field. High-resolution CT is helpful for early-stage lung disease and atypical bronchiectasis.

4. Ventilation function and bronchodilatation test: can identify and obstruct airway obstructive diseases, such as asthma, bronchitis, and airway tumors. Routine lung function, positive challenge test helps CVA.

5. Fiber bronchoscopy: can be effective for pathological changes in the trachea, such as lung cancer, foreign bodies, endometrial tuberculosis and so on.

6. 24h pH monitoring of the esophagus: determining the presence of gastric-esophageal reflux is the most effective method for GERC. Dynamic monitoring of esophageal pH changes, 6 parameters such as the number of 24-hour esophageal pH4, the longest reflux, and the percentage of esophageal pH4 in the monitoring were obtained, and the degree of reflux was demeester integral. The backflow correlation is recorded in real time to obtain the correlation probability (SAP) of reflux and cough. Reflux phase with cough.

7. Cough sensitivity: the subject inhales a certain amount of stimulant aerosol particles by aerosolization, which stimulates the corresponding cough sensor to induce cough, and the concentration of inhalant is used as an index of cough sensitivity. Capsaicin inhalation is commonly used for cough challenge tests. Increased cough sensitivity is common in AC, EB, and GERC.

8. Other:

1) Increased eosinophils in peripheral blood indicate parasite infection and allergic disease.

2) Allergen skin test and serum-specific IgE measurement are helpful for allergic diseases and identification of allergens.

(1) Should identify the cause of cough and take appropriate measures. Infection, anti-infection, elimination; or fight against allergens, with symptomatic, can make cough and expectorants good.

(2) Expectorants should be mainly used for cough, and antitussives should not be used alone. Frequent coughing only due to irritation of the pleura, pericardium, etc., or only irritating dry cough that frequently occurs when there is not much sputum, rest and sleep, to prevent pancreatic cough causing comorbidities (such as pulmonary vascular rupture, Emphysema, bronchiectasis, hemoptysis) can only be used shortly. For those who have cough accompanied by phlegm, they should be combined with expectorants (such as ammonium chloride, bromhexine, acetylcysteine) to facilitate the discharge of sputum and strengthen antitussive.

(3) For wet coughs with a lot of sputum, such as lung abscess, be cautiously administered to prevent the sputum from being blocked in the respiratory tract or infected.

(4) For a cough that lasts for more than 1 week and is accompanied by recurrent or persistent cough with fever, rash, asthma, and pulmonary abscess, you should go in time.

(5) In addition to medication, pay attention to rest, keep warm, avoid smoking, and avoid irritating food. For those with poor sleep or emotional irritability, tranquilizers or sedatives can be used.