Nasal congestion due to a cold is very common in clinical practice. The need for medication depends on the type of cold and the patient's own immune function. If the patient has a cold caused by a viral infection and the symptoms are not severe, or if the patient generally likes to exercise and is young, a mild cold may not require medication and can heal on its own within about a week. For children or elderly individuals with weaker resistance, when an upper respiratory infection occurs, it is advisable to administer some medication for symptomatic treatment to prevent the condition from worsening and to avoid unnecessary complications.