If left untreated, some patients may develop chronic obstructive pulmonary disease or pulmonary heart disease, which seriously affects the quality of life of patients. The reason why it is common in the elderly is that the elasticity of the lungs and airways has decreased in the elderly. Generally, the elderly expel half of the carbon dioxide of the middle-aged, so the body is often in a state of poor gas exchange. The increased amount of residual air in the lungs, like stagnant water, is conducive to the growth of bacteria, making the chance of bronchitis much higher, which explains why chronic bronchitis occurs mostly in the elderly. The main symptoms of chronic bronchitis are: coughing in the morning and coughing bouts or sputum at bedtime. This is due to the excitement of the vagus nerve during sleep at night, which stimulates mucus secretion and accumulates overnight, resulting in a large amount of coughing sputum in the morning of the next day. Coughing sputum: Generally white mucus sputum or plasma foamy sputum, occasionally with blood, more sputum in the early morning, and sputum can be stimulated after getting up or changing position. If bacterial infection is combined, there will be changes such as thick sputum. For example, Pseudomonas aeruginosa infection will cause yellow-green sputum, and Streptococcus pneumoniae infection will show rust-colored sputum. Fungal infections will show white mucous sputum with strained changes, and anaerobic infections will show foul sputum. Wheezing and shortness of breath: Those with significant wheezing are called wheezing bronchitis, and some may be accompanied by bronchial asthma. In case of emphysema, shortness of breath after labor or activity may be present. Chronic bronchitis wheezing can be considered to be differentiated from bronchial asthma patients. Patients with bronchial asthma have a low age of onset. There is a family history of allergy. Allergens are usually positive. The cause of chronic bronchitis: 1, cold: nearly half of the chronic bronchitis is caused by the cold, when the cold, the elderly body resistance is weakened, viral bacteria invasion of the trachea, in the trachea growth and reproduction and thus the occurrence of bronchitis, if bronchitis repeatedly delayed does not heal the formation of chronic bronchitis. 2, allergy factors: the most easily ignored allergy factors are dust mites. So we need to frequently change and wash pillowcases, covers and other bedding. In addition, if you are allergic to pet hair, you should not keep pets as much as possible, and if you are allergic to pollen, you can wear a mask when you go out. 3, cold air: the incidence of chronic bronchitis increases significantly in the north compared to the south, also in the north, the incidence is much higher in winter than in summer. 4, atmospheric pollution: polluted air can damage the bronchial cilia and affect phlegm. 5, smoking: a large part of the factors. It will damage the bronchial cilia, making it shorter and weakening the movement. Fourth, the prevention and treatment of old slow branch 1, diet therapy: combined with diet to improve the function of the lungs, such as: Sydney, loquat, green tea, grapefruit, silver fungus, etc., can get nutrients in these foods to moisten the lungs, cough, quench thirst. Patients with chronic lung disease have low immunity and should be supplemented with high quality protein, such as eggs, fish, lean meat and so on. Do not eat spicy food, drink more plain water appropriately, cough and sputum wheezing are aggravated by senseless evaporation, water loss, supplementation of plain water can avoid sputum sticky. 2, exercise therapy: old chronic bronchial manifestation of perennial chronic cough, and accompanied by a moderate amount of mucus or purulent sputum, wheezing chronic bronchitis for a number of years after the emergence of wheezing symptoms. The sputum is white mucus foamy, more in the morning, and often not easily coughed up because of its stickiness. The disease is heavy in winter and light in summer, and the situation worsens when the weather becomes cold or when there is a sudden change in climate, and the sputum volume increases, the viscosity increases, or the sputum becomes yellow and purulent or is accompanied by wheezing. Occasionally, blood is present in the sputum due to severe coughing. An important point in the prevention and treatment of laryngitis is to try to strengthen the body and improve the immunity of the body to prevent the recurrence and aggravation of laryngitis in winter. The most important thing is to keep warm and cold to avoid colds and flu to enhance immunity, do not exert yourself, exertion hurts gas, do not stay up late and get anxious on fire, stay up late and get anxious on fire, also reduce immunity, easy to cause viral bacterial infections. Laughter can nourish the lungs, in the time of laughter, lung capacity will increase, good for the respiratory tract, people in the time of laughter, breathing can not help but increase, so that absorbed more oxygen, oxygen increased, every cell of the body has improved. Walking, qigong, tai chi, etc. all contribute to the prevention of slow-onset disease. Some studies have shown that tai chi combined with bronchodilators can greatly improve the amount of exercise for the elderly. More exercise, but not strenuous exercise, and at the same time to master the exercise time, long-term exercise can strengthen the body. 3, nebulized inhalation: the liquid will be vaporized and act directly on the tracheobronchial tubes, you can add phlegm, glucocorticoids, bronchodilators, etc. 4.Oxygen inhalation: Long-term, continuous, low-flow oxygen inhalation (2-3 liters/minute), more than 14 hours a day, uninterrupted oxygen inhalation at night after going to sleep. Intermittent during the day. Five, the application of oral antibiotics Patients in the absence of examination, based on experience or search for their own choice of some antibiotics, or even combined with other drugs, resulting in reduced drug efficacy, and even multiple infections. The long-term unreasonable use of antibiotics by themselves can inhibit the normal intestinal flora, making it synthesize less vitamin B and K, causing stomatitis and tongue inflammation. Therefore, patients need to choose antibiotics reasonably under the guidance of professional physicians. Chronic bronchitis is characterized by coughing and sputum, followed by wheezing, and it occurs at an older age, mostly in middle-aged and elderly people; bronchial asthma occurs at a younger age, with a family history and allergy history; chronic bronchitis is treated with bronchodilators alone, and requires symptomatic treatment with anti-inflammatory and phlegm; bronchial asthma is effective with bronchodilators; chronic bronchitis is recurrent, with thickened bronchial biscuits, and cannot be treated with bronchodilators. Bronchial bike-thickening, which cannot be completely cured; while bronchial asthma attacks are completely reversible by treatment and can be cured. Finally, we would like to say that there is no specific medicine for chronic bronchitis, and the best result is to control the disease and avoid recurrent attacks. We hope that through our popularization of science, patients with chronic bronchitis can benefit from our popularization of science and get through the winter safely.