Fever caused by a cold is due to a viral infection as a result of weakened immune system and inflammation stimulating the body's temperature regulatory center, leading to an immune response. During this period, one should drink plenty of water. If the body temperature exceeds 38.5 degrees Celsius, one may opt to take medications like acetaminophen or ibuprofen suspension for fever reduction. If the body temperature is below 38.0 degrees Celsius, it is generally not necessary to take fever-reducing drugs, and physical cooling methods can be used. After two hours, recheck the temperature, and the palms of the hands and soles of the feet can be wiped with warm water.