Bronchitis is divided into acute bronchitis and chronic bronchitis, the main symptoms are: 1, acute bronchitis: nasal congestion, runny nose, itchy pharynx, dry pharynx, hoarseness, coughing, coughing up white sputum or yellow pus sputum and other upper respiratory tract infections; low-grade fever, chills, malaise and other systemic symptoms; 2, chronic bronchitis: gradually aggravated cough and coughing up sputum, mild symptoms can be dyspnea, with the development of the disease can be shortness of breath, affecting the normal life and the recurrent respiratory infections in the change of weather, the exchange of cold season.