Acute bronchitis is an inflammation of the bronchial mucosa due to infection by pathogens such as viruses or bacteria. It is a common and frequent disease in infants and children, often secondary to upper respiratory tract infections, and is often an early manifestation of pneumonia. The disease mostly involves both trachea and bronchus, so the correct name should be acute tracheobronchitis. It is characterized clinically by a cough with (or without) increased bronchial secretions. Etiology Acute bronchitis is caused by the downward spread of an upper respiratory tract infection, most often a mixed viral and bacterial infection. The main manifestation is cough, initially dry, later with sputum, there may be obvious systemic symptoms, such as fever, vomiting, diarrhea, etc. There is usually no shortness of breath and cyanosis, except for wheezing bronchitis. Treatment 1.Antibiotic treatment. 2, antiviral treatment. 3, cough, asthma available cough and phlegm, asthma medicine. Education 1. Activity: Children should reduce activity and increase rest time. 2. Diet: Give easy-to-digest and nutritious diet and encourage children to drink more water. 3. Review time and indications: Generally, no review is needed. Special instructions 1.Keep the airway open. 2. Negative pressure aspiration can be given to clear the respiratory tract if there is a lot of sputum. If the sputum is sticky and not easy to be sucked out, drink more water, change the position regularly, give ultrasonic nebulization if necessary, or tap the chest and back more often to assist in sputum discharge. 3.If shortness of breath or breath suffocation occurs, give continuous low-flow oxygen immediately. 4.The environment should be quiet, neat and clean, and the indoor air should be fresh. 5.Strengthen prevention, especially in winter and spring. Guide the child to exercise after healing to enhance physical fitness.