Cold and itchy throat, cough, phlegm is often seen in the mucous membrane of the respiratory tract has bacteria invasion, and caused by the inflammatory reaction, a large number of purulent secretions have oozing. At this time, we should pay attention to keep warm, avoid cold. You can use budesonide nebulized solution nebulized inhalation treatment, take expectorant drugs, such as carboxymethylstilbestrol oral solution, orange red phlegm cough solution, Mucosolvan oral solution and so on. For yellow sputum can be treated with antibacterial drugs, such as penicillin drugs, such as amoxicillin clavulanate potassium, cephalosporins such as cefoperazone sulbactam, ceftazidime, macrolides such as azithromycin, erythromycin, etc., quinolones such as levofloxacin. If necessary, take yellow sputum for bacteriological culture and drug sensitivity test to adjust the choice of antimicrobial drugs.