Bronchitis with croup is considered an acute attack of bronchitis and may be an exacerbation of the condition. The main symptoms of bronchitis are chronic cough, coughing up sputum or with wheezing, with annual episodes lasting 3 months for 2 or more years. Croup may be present during acute episodes and may decrease or disappear after coughing. Croup is a dry rumbling sound, bronchitis patients bronchial wall and surrounding tissue inflammation exists, acute attacks can be seen in a large number of inflammatory cells, stimulating the secretion of a large amount of mucus. At the same time, due to repeated damage to the bronchial wall, caused by the remodeling of the bronchial structure, lumen narrowing, resulting in lung auscultation can be heard rumbling. Bronchitis patients with or without rales should be actively standardized treatment under the guidance of the doctor, so as to avoid the condition of prolonged, affecting the health of the body.