You should never drink coffee during a fever. Coffee contains a large amount of caffeine, which increases the metabolic rate of the body and has the effect of raising the body temperature, which can aggravate the symptoms of fever. Caffeine has a refreshing effect, and drinking coffee can easily lead to some insomnia, and poor rest is also very detrimental to the recovery of fever, so you should take more rest in the case of fever. Coffee has a certain stimulation for the gastric mucosa, which can easily lead to some stomach discomfort, during the fever is prone to gastrointestinal discomfort, drinking coffee will aggravate these symptoms, so you should never drink coffee in the case of fever. In case of fever, if the body temperature is relatively high, above 38.5 degrees, you should actively use antipyretic drugs for treatment, such as oral ibuprofen suspension or acetaminophen suspension. In addition, you need to drink more plain water or fresh fruit juice, especially fresh fruit juice, which is not only rich in water, but also can enhance the body’s immunity.