My baby has had a cold for nearly a month, with coughing, nasal congestion, and runny nose. The symptoms improved after taking medicine, but they started to recur a few days after stopping the medication. What should I do for my baby’s nasal congestion and cough? The course of a common cold usually lasts about a week, but it could be due to the baby’s low sensitivity to the medication or inadequate care, leading to an extended illness. It is recommended to visit a regular hospital to check whether it is a bacterial or viral infection so that appropriate medication can be determined. In daily life, patients should balance their diet, engage in more aerobic exercises to strengthen their bodies, and maintain a positive mood to enhance their constitution and accelerate recovery.