Bronchiectasis is a clinically significant viral infection, so blood tests usually show a normal white blood cell count or an increased lymphocyte count. If there is a combination of bacterial infection, it may show an increase in white blood cells and an increase in neutrophil ratio. Bronchitis is a relatively common clinical condition that is characterized by coughing and coughing up sputum. The main treatment is symptomatic treatment, such as cough and phlegm, can be oral cough and phlegm drugs, can also be used nebulization treatment. If there is airway spasm, you can add wheezing drugs, such as β2 agonists, and pay attention to a light diet, avoid spicy and stimulating food, drink more warm water, and pay attention to rest.