Runny nose and phlegm in the throat are mainly caused by upper respiratory tract infections. Upper respiratory tract infections, which are often referred to as colds, are mainly caused by influenza, parainfluenza, respiratory syncytial virus, etc. Some patients with colds can also be caused by bacteria. When there is a runny nose and phlegm in the throat: firstly, patients should be advised to control their diet and not to eat foods that are too stimulating and spicy, as they can lead to fire. Secondly, keep the room ventilated and can be treated with oral medications such as compound aminoglutethimide, shuanghuanglian, banlangen and four seasons cold tablets. If combined with bacterial infection, further antibiotics can be selected for treatment.