Firstly, you should drink more water to promote metabolism and eat more fresh vegetables and fruits to help restore bodily functions. Avoid eating spicy food such as chili peppers and reduce meat consumption. Measure body temperature, you can massage the temples, or drink more ginger sugar water, which can help relieve headaches. If the body temperature rises, you can use warm water to wipe the palms, soles of the feet, neck, and chest. At the same time, apply a cool towel or ice pack to the forehead. Once the temperature normalizes, the symptoms of cold and headache will gradually improve; there is no need to worry too much.