Fever 38 degrees cold, need to go to the hospital first to find the cause of the disease, the cause of the symptoms of a variety of reasons, common are: mild heat stroke, influenza, upper respiratory tract infections and so on. It can be solved by on-site rescue, symptomatic medication, physical cooling and other methods. 1. Mild heatstroke: heatstroke when the body’s central nervous system to regulate body temperature is impaired, it is possible to cause the body temperature rose 38 degrees body cold phenomenon. Generally through the rapid departure from the hot environment to a ventilated cool place, with a wet towel to wipe the body, supplemental water, body temperature detection methods can be relieved. 2. Influenza: mild cases can be self-cured, need to do a good job of care, such as warm water to wipe the body to physical cooling, if the temperature exceeds 38.5 degrees, need to take oral ibuprofen (occasionally vomiting) and other antipyretic drugs, good warmth, and adequate rest. In moderate to severe cases, antiviral drugs such as oseltamivir (occasionally nausea) within 48 hours can shorten the duration of the disease, and symptomatic treatment is also needed. 3. Upper respiratory tract infection: Keep warm when you are cold, and take physical methods to relieve body temperature. Viral infections also need symptomatic treatment, such as using dextromethorphan (occasionally dizziness) to suppress coughing, and using pseudoephedrine hydrochloride (occasionally headache) to relieve nasal congestion. For combined bacterial infections, antibiotic drugs such as cephalosporins (occasionally for gastrointestinal irritation) are required based on drug sensitivity tests. If you have a fever of 38 degrees and are cold, you need to go to the hospital for treatment, and if you need to use prescription medication, it must be directed by a doctor.