Question 2: How to dry cough quickly? Cough is a protective respiratory reflex, which is a physiological reflex caused by the impulse of respiratory tract to the cough center of medulla oblongata after being subjected to * * * (such as inflammation and foreign body). It can discharge respiratory secretions or foreign bodies and protect the cleanliness and smoothness of the respiratory tract. Therefore, coughing is generally a beneficial action, and it is sometimes seen in healthy people. Under normal circumstances, a slight and infrequent cough can be relieved naturally as long as sputum or foreign bodies are discharged, and no antitussive drugs are needed. However, for those with severe dry cough without phlegm, or those with severe cough with excessive phlegm, it not only increases the pain of patients, affects rest and sleep, increases physical exertion, and even promotes the development of diseases, resulting in other complications. At this time, the disadvantages outweigh the advantages. Therefore, antitussive drugs should be used appropriately to relieve cough.
Cough reflex
Cough reflex arc includes four links:
(1) Respiratory nerve terminal receptors, including mechanical receptors, chemoreceptors and lung stretch receptors.
(2) The afferent nerve is vagus nerve fiber.
(3) The cough center of the medulla oblongata is located in the dorsal part of the medulla oblongata, adjacent to the respiratory center.
(4) Efferent nerves, including vagal efferent fibers, superior laryngeal nerves and cranial nerves. They cooperated to complete the cough.
Cough is a reflex defense mechanism to remove foreign bodies and protect the lower respiratory tract. The essence of coughing is to inhale violently and forcefully, then the glottis are closed, and the intercostal muscle and diaphragm are forced to contract one after another, which can build up the intrapulmonary pressure of about 40 kPa. Then the glottis suddenly opened, and the diaphragm quickly contracted hard, so that the gas in the lungs rushed out of the respiratory tract at a high speed, and the substances attached to the respiratory mucosa were ejected, forming cough and expectoration. Such a complex and coordinated function is that nerve terminal receptors excite the respiratory center of medulla oblongata through afferent nerves, and then the respiratory center sends out impulses, which act on intercostal muscles, diaphragm and glottis through efferent nerves, resulting in cough and expectoration.
Mechanical receptors, chemoreceptors and lung stretch receptors are distributed on the mucous membrane of respiratory tract, so the mechanical * * * of mucus, dust or foreign matter, the chemical * * * of smoke and poisonous gas and the increase of muscle tension caused by bronchospasm can all cause cough. The afferent impulse of receptors and the efferent excitement of cough center mainly pass through vagus nerve. Because vagus nerve endings are not only distributed in throat, trachea and bronchus, but also in pleura, lung and internal organs, cough can be caused not only by chest infection, but also by head and abdomen lesions. Any link of the above cough reflex arc changes or fails, which will cause cough disorder.
The function of antitussive drugs
Cough reflex can last for several days to months, and cough with acute respiratory infection can last for several days, and it can disappear after inflammation is controlled. Cough caused by chronic bronchitis, asthma, smoking, etc. It often lasts for more than 3 weeks and can be considered as a chronic cough. For cough, it is often necessary to use some drugs to stop it, so the use of antitussive drugs can easily be considered as an effective measure.
Application principle of antitussive drugs
(1) Make a clear diagnosis, determine the cause of cough, and actively take corresponding treatment measures. Firstly, control infection, take anti-infective drugs orally and eliminate inflammation; Or anti-allergens, combined with symptomatic treatment, can make antitussive and expectorant drugs get good results.
(2) The treatment of common cough should be mainly expectorant, and antitussive drugs should not be used alone. Only when frequent severe cough is caused by pleura and pericardium, or frequent dry cough is caused by insufficient sputum, which affects the rest and sleep of patients, can antitussive drugs be used for a short time in order to prevent complications caused by severe cough (such as pulmonary vascular rupture, emphysema, bronchiectasis and hemoptysis). For cough with excessive phlegm, it should be combined with expectorants (such as ammonium chloride, bromhexine, acetylcysteine, etc.) to facilitate the discharge of sputum and strengthen the antitussive effect.
(3) For wet cough with excessive sputum, such as lung abscess, medication should be used with caution to avoid retention of respiratory tract or aggravation of infection due to obstruction of sputum discharge.
(4) For those who have a persistent cough for more than 1 week, accompanied by repeated or persistent cough, fever, rash, asthma and lung abscess, they should go to the hospital for a definite diagnosis or consult a doctor in time.
(5) In addition to medication, we should also pay attention to rest, keep warm, avoid smoking, and avoid eating sexual food. Sedatives or sedatives can be used for people with poor sleep or emotional irritability.
benproperine
[drug action]
Benproperine is a powerful non-narcotic antitussive with rapid onset. Animal experiments show that the antitussive effect of this product is 2-4 times stronger than codeine. The antitussive effect of this product is twofold, except blocking sensory nerve impulses from lung and pleural extension receptors. & gt
Question 3: What should I do if I have a bad cough? I hope I can help you: five food treatments for cough. For cold and cough, almond 10g, 3 slices of ginger and radish 10g can be decocted with water. Wind-heat cough can be matched with lotus root juice and pear juice. Phlegm heat cough might as well use a fresh cooked papaya, peeled and steamed, and add a little honey to eat. Cooking porridge with coix seed for phlegm-dampness cough is helpful to treat cough and expectoration in throat; Or decoct 30 grams of orange peel into thick juice, remove residues, and add 50 to 100 grams of japonica rice to cook porridge. For chronic cough caused by lung qi deficiency or yin deficiency, use more than 20 grapefruit seeds, add rock sugar and water to decoction, three times a day, which is beneficial to chronic cough. You can also eat 30 grams of steamed lily honey, which is good for chronic cough and dry mouth.
Question 4: Cough. Dry cough. It's been several days. What should I do? Cough is the main symptom of respiratory diseases, such as cough without phlegm or dry cough, which is common in the early stage of acute pharyngitis and bronchitis. Acute sudden cough, more common in the branch gas penetrating foreign bodies; Long-term chronic cough, more common in chronic bronchitis, tuberculosis and so on.
Rest can relieve the illness, so cough patients should pay attention to rest. Keep warm so that you won't catch a cold again. Drinking more water can replenish excess water consumed by the body. Eat more nutritious food and try not to eat * * food, such as cigarettes, wine, spicy food, cold drinks, etc. Treat a cold or cough as soon as possible, without delay. When exposed to fresh air, some patients recuperate in the mountains and recover quickly because fresh air will not aggravate the lungs and trachea.
Question 5: What should I do if I have a bad dry cough at night? Repeated cough at night is generally more common in asthma and heart failure. Asthma is more common in young people, usually accompanied by aggravated odor, wheezing in breathing, heart failure in the elderly, edema of lower limbs, dyspnea and aggravation of supine position. It is necessary to differentiate and check lung function, chest X-ray and echocardiography.
Question 6: I have a dry cough for a long time, and what medicine I take is not good. What should I do? There are three possibilities for long-term dry cough: cough variant asthma or bronchial asthma, tuberculosis or lymph node tuberculosis, chronic bronchitis or chronic pharyngitis. I want to ask if you have seen a doctor, but have you had any tests?