The yellow and sticky phlegm of cold is mainly caused by bacterial infection, need to take oral anti-inflammatory drugs, commonly used anti-inflammatory drugs such as cephalosporin, such as cefixime granules; penicillin, such as amoxicillin capsules, etc., phlegm also need to take oral cough medicine to resolve phlegm, commonly used honey refining Chuanbei loquat, compound licorice combination, lung cough combination, etc. If the symptoms are mild and the infection is not very serious, you can take the above drugs orally for treatment, and choose one of each drug to take on time. If the symptoms are more serious it is advisable to go to the hospital to choose infusion, further treatment, commonly used infusion of anti-inflammatory drugs such as cefminox, amoxicillin, levofloxacin, etc., at the same time need to take oral symptomatic drugs, in addition to anti-inflammatory drugs, the above drugs need to be taken orally at the same time.