The nose has been yellow pus nasal discharge, consider two possibilities: 1, rhinitis complicated by nasal infection, rhinitis attack can appear nasal congestion and runny nose symptoms. If it is complicated by bacterial infection, yellow pus nasal discharge is likely to occur. 2, the possibility of sinusitis. Due to the deep location of the sinuses during the attack of sinusitis, there will be constant and repeated discharge of purulent secretions into the nasal cavity, forming yellow pus nasal mucus. If you have yellow pus nasal discharge all the time, it is recommended that a rhinoscopy or sinus CT examination should be performed to clarify the specific cause. If it is a general rhinitis with infection, antibiotics, such as amoxicillin, can be used for anti-infection treatment. If it is sinusitis, especially chronic sinusitis, in addition to the use of antibiotics, you also need to give the appropriate nasal drainage, repeatedly flush the nasal cavity, or perform open window drainage surgery.