Colds are caused by viral infections of the upper respiratory tract. Fever is a phenomenon due to the replication of the virus in the body, which causes an inflammatory response in the body and leads to abnormalities in the thermoregulatory center. Generally, fever can be reduced by physical cooling and medication, and there is no simplest cure. 1. Physical cooling: fever patients can use warm water bath, fever patch and other ways to cool down, or use a towel wrapped in ice packs in the forehead, neck, armpits and other parts of the blood vessels to cool down ice packs. 2. Medication: Compound aminophenolamine tablets and other medications can be used to relieve fever, headache, limb pain and other symptoms caused by colds. When there are symptoms of bacterial infection such as coughing up pus and sputum, antibiotics such as cephalosporin or penicillin can be used. High fever can be treated with medications that reduce fever such as acetaminophen and ibuprofen. In case of influenza, the antiviral drug oseltamivir can be applied early. Fever can also be caused by other diseases, such as recurrent fever, high fever or infants and pregnant women and other special groups of people with fever, it is recommended to consult a doctor in a timely manner, improve the examination, follow the doctor’s instructions to use medication, is not recommended to self-reduction of fever. Drink plenty of water during the period of fever, ensure enough rest, pay attention to keep warm and avoid getting cold.