Clinically, there is no such thing as a fast-acting medicine for phlegm and cough; phlegm and cough can be treated symptomatically by oral expectorant and cough suppressant medications, but the cause of the cough needs to be addressed in order to eliminate the symptoms of phlegm and cough completely. Patients with phlegm and cough can take oral expectorant and cough medicine for symptomatic treatment, in order to alleviate the symptoms, commonly used expectorant drugs are bromhexine hydrochloride, acetylcysteine, etc., and commonly used cough medicine licorice tablets, coughing and so on. But the use of expectorants and cough suppressants to deal with phlegm and cough can only play a symptomatic effect, so it is important to find the primary disease to implement appropriate treatment programs, such as chronic bronchitis due to bacterial infection caused by acute exacerbation of phlegm and cough, in addition to the use of expectorant and cough suppressant, but also the application of medication to control the infection, such as penicillin, levofloxacin and other antibiotics, in addition to the use of terbutaline, aminophylline, such as antispasmodic and asthma drugs. Spasmodic and asthmatic. Individuals such as phlegm cough symptoms, do not abuse their own drugs, should go to the hospital in a timely manner to improve the relevant laboratory tests, clear causes, and comply with the doctor’s instructions on the cause or symptomatic treatment.