A cold, also known as an upper respiratory tract infection, often occurs due to decreased immune function, inadvertent exposure to cold, or infection by certain viruses, bacteria, or pathogens, leading to clinical symptoms such as nasal congestion, runny nose, fever, sore throat, and chills.

When a patient with a cold has a fever, it invariably causes a sensation of chilliness throughout the body, along with cold extremities. If such patients are given appropriate antiviral, heat-clearing, detoxifying, and fever-reducing medications for symptomatic treatment, usually after the fever subsides, a process of sweating occurs, which is very common in clinical practice, especially in cases of febrile colds.

Therefore, in clinical practice, regardless of the type of cold causing the fever or symptoms like nasal congestion, it is essential to provide timely symptomatic treatment with medications to alleviate these uncomfortable clinical symptoms.