Coughing up yellow phlegm is considered to be a cough with phlegm-heat in the lungs or lung-heat in TCM. For example, you can use Chinese medicine such as Fuxiang Fishy Cao Oral Liquid, Lung Power Cough Compound, Fuxiang Xianzhuli Liquid, Pu Di Lan Oral Liquid and Blue Scutellaria Oral Liquid. If you cannot cough up yellow sputum because the sputum is too sticky, you can use mucolytic agents such as Ambroxol tablets, acetylcysteine granules, carboxymethylstilbestrol tablets, etc. to help dilute the sputum and promote the discharge of sputum. If the amount of yellow sputum is more, you can take oral cephalosporins or macrolides, respiratory quinolones antibiotics for anti-infection treatment. If accompanied by chest tightness, tightness of breath and dyspnea symptoms, you can use budesonide, ipratropium bromide nebulization treatment.