Cough and phlegm using the following drugs: 1. You can take drugs to reduce phlegm, for example, you can take Ambroxol hydrochloride, Bromhexine, or nebulized inhalation of acetylcysteine solution. 2. If you cough and sputum, the color of the sputum is yellow or the blood routine indicates an increase in white blood cells, which indicates a bacterial infection, you can choose macrolides, common macrolides are azithromycin, penicillins or Cephalosporins, pay attention not to choose antibiotics to which you are allergic; you can also choose quinolones, such as levofloxacin, and other drugs for treatment.