Itchy throat and coughing out with yellow pus-colored sputum. There are two issues to look at. One is the presence of laryngeal disease, which can result in yellow pus-colored sputum after coughing out, and when recovering from a cold, you may have a cough with yellow pus-colored sputum inside. The second is to consider whether the patient has symptoms of sinusitis. Because sinusitis flowing yellow pus snot from the throat, coughing out of the throat, coughing phlegm is not phlegm is the backflow of nasal mucus. If it is a small child, you should consider whether there is pus sputum caused by adenoid hypertrophy causing upper respiratory tract infection. If the patient has bronchitis, he or she will cough up a lot of pus sputum when he or she has a bronchial cough, and the cough with pus sputum is caused by different diseases.