For colds and fever, one should eat more ginger, drink more brown sugar water, or directly take ginger sugar water. Eat more millet porridge and green leafy vegetables and fruits, and try to drink more water to promote metabolism. Physical methods to reduce fever can also be adopted, or combined with the use of antipyretic and analgesic drugs to relieve the symptoms of fever. Generally, body temperature should be measured again two hours later. If the temperature does not decrease, it is necessary to go to the hospital in time for an examination and take other measures to reduce the fever and alleviate the symptoms. (The use of medications should be under the guidance of a doctor.)