The drugs that are more effective in resolving phlegm are Lung Power Cough Compound, Aminoterol Oral Liquid, Honey Refined Chuanbei Loquat Paste or Powerful Loquat Paste, and Compound Fresh Bamboo Liqueur Liquid. However, when there is phlegm, there is usually inflammation in the respiratory tract, so taking only phlegm-reducing drugs is definitely not enough, and you also need to take anti-inflammatory drugs. If the cough has phlegm in the early stage, you can take Chinese anti-inflammatory drugs, such as Pu Di Lan Anti-inflammatory Oral Liquid or Blue Scutellaria Oral Liquid. If the cough is late, it is usually combined with a bacterial infection, and it is best to take antibiotics for treatment. If you are allergic to cephalosporin, you can take azithromycin.