Expectorant drugs are mainly: first, bromhexine, can be used to treat mucous phlegm is not easy to cough up the patient, usually each time to eat 8-16mg 3 times a day. Secondly, you can use oral Ambroxol tablets or Ambroxol hydrochloride injection for expectorant treatment, used for mucous phlegm is not easy to cough out of the person, oral drugs, each time to use 1-2 tablets, 3 times a day, take after meals. Third, you can use some proprietary Chinese medicines, such as orange red phlegm cough liquid, and compound licorice oral liquid, strong loquat lozenges and other drugs to remove phlegm, cough.