Autumn colds are mainly caused by the change of seasons, temperature differences, and viral infections due to dry air this season, causing symptoms like nasal congestion, runny nose, dry mouth, and sore throat. During this period, it is first necessary to maintain an appropriate indoor temperature and humidity, drink more water, and eat foods like carrots, tomatoes, and mung bean sprouts to supplement vitamins. Also, measure the body temperature twice a day and avoid eating spicy peppers as well as overly greasy and spicy foods.