The cough caused by a cold is usually a defensive reflex of the body, and if there is phlegm in the cough, it indicates that there is inflammation in the body. The common cold is usually self-limiting, and the symptoms of fever and cough can often be relieved on their own by taking proper rest, keeping warm, drinking enough water and eating a light diet. In order to get well soon, you can also take some cold medicine. Since cold medicine is mostly compounded, patients need to combine their own situation and use the medicine reasonably. When coughing with phlegm, symptomatic treatment is needed, and cough expectorant compound preparations can be used. Among cough suppressants, you can choose dextromethorphan, peripheral cough suppressant benpropirin and noscapine, which are not addictive and respiratory depressants; expectorants can choose ammonium chloride, acetylcysteine, standard myrtle oil (these can reduce the viscosity of sputum), as well as drugs with the effect of stimulating the secretion of mucous membrane glands: bromohexine, ambroxol and guaiacol glycerol ether, and drugs that directly stimulate the swing of cilia: standard myrtle oil. In addition, it is not necessary to use antibiotic drugs such as penicillin and cephalosporins for most viral-induced common colds to avoid adverse drug reactions and drug resistance. As each person’s body condition is different, please combine the specific medication with the clinical, subject to the guidance of the doctor’s interview. In addition, in daily life, it is also necessary to pay attention to rest and drink water regularly to prevent the occurrence of colds and coughs.