If the fever is caused by cold, most of them are symptoms of upper respiratory tract infection caused by viral or bacterial invasion, the course of the disease is usually in 5-7 days, if the fever is 38 degrees for 2 consecutive days, the mental state is relatively good, the diet is good, the urine and stool are normal, there is usually no harm, occasionally the fever is good for the body and can improve the resistance to bacteria and viruses. When you have a fever, you can drink more water, pay attention to rest, supplement vitamin C, prevent cross-infection, and be alert to the phenomenon of dehydration and convulsions caused by high fever. You can take anti-cold drugs such as cold and flu granules, Aminophenol pseudo-masmin tablets and Meiyao pseudo-masmin capsules orally, which can treat and relieve various symptoms caused by common cold and influenza. If the temperature exceeds 38.5 degrees, you can use indomethacin suppositories, or take oral antipyretic and analgesic drugs such as ibuprofen and acetaminophen, which can play a fast role in reducing fever.