In general, the common cold usually resolves itself in about seven days. Common symptoms of a cold often include a runny nose, nasal congestion, sneezing, and coughing, which may be caused by exposure to cold air or getting wet in the rain. It is recommended to stay warm in daily life, and you can also drink some brown sugar ginger tea to dispel the cold inside the body. Additionally, soaking your feet in hot water before bed can help promote the self-healing process of a cold. At the same time, it is important to note that if the symptoms are severe, such as severe coughing, coughing up thick yellow phlegm, or difficulty in expectorating phlegm, it is essential to visit a hospital for an examination. Under the guidance of a doctor, carrying out relevant tests and taking medication according to the test results for targeted treatment is crucial.