Colds with yellow sputum and yellow nasal discharge are usually caused by a bacterial infection secondary to a viral infection. Colds are usually caused by viral infections and have a rapid onset, mainly manifesting nasal symptoms such as sneezing, nasal congestion, watery nasal discharge, but also dry cough or coughing up white sputum, dry throat, itchy throat and other symptoms. If due to improper care or low resistance secondary bacterial infection, may lead to cough yellow sputum, yellow nasal discharge and other symptoms, can use amoxicillin and other antibiotics to improve the symptoms. Secondly, yellow sputum, yellow snot may also be a complication of the cold acute suppurative tonsillitis, acute sinusitis and other diseases, resulting in yellow sputum, yellow snot, need to address the cause of acute suppurative tonsillitis, acute sinusitis for treatment, respectively. In addition, yellow sputum, yellow nasal discharge can also be caused by other diseases, if the symptoms do not improve or aggravate, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, under the guidance of the doctor’s reasonable treatment.