Bronchitis is divided into acute bronchitis and chronic bronchitis, because of the different types, need to pay attention to different aspects, precautions include: a. Acute bronchitis: 1, the stimulation of physical and chemical factors: cold air, dust, irritant gases or smoke (such as sulfur dioxide, nitrogen dioxide, ammonia, chlorine, etc.) inhalation, can Kawasaki trachea – bronchial mucosa caused by acute injury and inflammatory response, therefore Patients with bronchitis should avoid the stimulation of some physical and chemical factors. If necessary, you need to wear a mask protection; 2, away from allergens: allergic people inhaling allergens such as pollen, organic dust, fungal spores, animal fur and excrement allergies can also cause acute bronchitis to occur; therefore, to stay away from allergens to avoid aggravating the disease; 3, viral infections: the main acute bronchitis to be caused by viruses of the upper respiratory tract infections, such as the common cold and influenza. Therefore, the prevention of acute bronchitis is mainly to pay attention to the occurrence of colds and flu caused by viruses, out of active symptomatic treatment, should also avoid exertion and improve their immunity. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. Inhalation of a large number of harmful gases such as sulfur dioxide, chlorine, etc. can also induce the onset of chronic bronchitis; some patients have long-term recurrent attacks, with a certain degree of seasonality, preferably in spring and winter. The actual fact is that you can find a lot of people who are not able to get the best out of your own home. In addition, you can not eat too much greasy food, which may lead to respiratory obstruction, and in serious cases, will aggravate the symptoms of breathing difficulties. Eat more foods that relieve cough, calm asthma, dispel phlegm, warm the lungs and strengthen the spleen, such as white fruit, loquat, grapefruit, northern melon, yam, chestnuts, lily, seaweed and nori.