Coughing and spitting up yellow sputum is not a fast recovery and is usually considered to be a combination of secondary bacterial infections. If the above inflammatory indexes are higher than normal, it indicates the combination of bacterial infection, and anti-infective treatment with sensitive antibacterial drugs can be selected according to the sputum culture results. Clinically, you can take penicillin or cephalosporin orally empirically, and you can also take cough and sputum medicines orally while actively anti-infective treatment, and if necessary, you can also use nebulized expectoration. At the same time, pay attention to a light diet, drink more warm water, avoid spicy and stimulating food, pay attention to rest and do not stay up late.