Colds are very common in clinical settings, often due to a patient's lowered immune function. Patients may inadvertently come into contact with viruses, bacteria, or other pathogens, leading to symptoms such as nasal congestion, runny nose, sneezing, sore throat, fever, and cough. For patients experiencing nasal congestion from a cold, it is advised to avoid spicy and irritating foods such as chili peppers, raw onions, and raw garlic. Additionally, they should not consume cold or cooling foods and should avoid smoking and drinking alcohol to prevent exacerbating the symptoms of the cold. Therefore, during a cold, it is advisable to avoid seeking cool environments and to not set the air conditioning too low to prevent getting chilled again.