There are a lot of drugs for adults to relieve cough and phlegm, such as compound honey extracted Chuanbei loquat ointment, Ambroxol oral solution, Ambroxol hydrochloride, compound glycyrrhiza composite, oxalic acid and snake gall Chuanbei liquid, Lung Li Cough composite, fresh bamboo leech liquid or compound fresh bamboo leech liquid, the effect of these drugs to relieve cough and phlegm is relatively good. But adults with cough and phlegm symptoms, can not simply rely on cough and phlegm drugs, should also use anti-inflammatory drugs, anti-inflammatory is the main treatment measures. First of all, you need to clarify the type of infection, if it is a bacterial infection, you need to use antibiotics for treatment. If penicillin is not allergic, you can take oral amoxicillin clavulanate potassium. If penicillin is allergic, it can be treated with levofloxacin or erythromycin. If a viral infection occurs, you can use ribavirin or buspirone anti-inflammatory oral solution, blue scutellaria oral solution seasonal antiviral combination. In case of influenza virus infection, oseltamivir can be used for antiviral treatment.