A yellow runny nose from a cold is usually a progressive condition, and some people may experience similar symptoms during the recovery period. A cold with a yellow runny nose is usually in a period of rapid progression of the disease. Colds are generally caused by viral infections, which can stimulate the mucous membrane of the nasopharynx, resulting in increased secretion. At the same time, due to the influence of the virus, the nasal mucus becomes yellow, and at this time in the rapid progress of the disease, the virus continues to replicate and reproduce in the body. However, some people in the recovery period can also appear similar performance, due to poor immunity, the virus has not been completely cleared, the mucous membrane of the nasopharynx is still affected, and the performance of yellow nasal discharge can occur. Therefore, it is recommended to consult a doctor in time, subject to the doctor’s advice, and at the same time to treat the disease as early as possible.