Fever symptoms caused by a cold can be treated with physical cooling methods. There are many commonly used methods in clinical practice. For adults, one can wipe the palms, soles, neck, and chest—areas where major blood vessels run—with warm water or alcohol. You can also use a cool towel or ice packs to compress the forehead. Drinking herbal concoctions like scallion water or ginger sugar water can also help reduce fever physically. Additionally, soaking feet in Sichuan peppercorn water can be effective. Regardless of the method used, it's important to drink plenty of water and recheck the temperature after two hours.