How many days does a high fever from viral flu usually last?
Generally speaking, high fever refers to a high body temperature. High fever caused by viral colds usually lasts for 2–4 days. The specific analysis is as follows:
When patients develop a cold due to viral infection, symptoms such as fever, headache, runny nose, cough, and flushed face may occur. After the virus invades the body, toxins enter the bloodstream, causing disruption of the body's temperature regulation center, resulting in increased heat production and reduced heat dissipation. Body temperature typically exceeds 39°C. Under these circumstances, high fever generally persists for 2–4 days before subsiding. If a patient develops high fever, it is recommended to seek medical treatment promptly and take medications such as ibuprofen suspension, compound paracetamol tablets, or ribavirin granules as directed by a physician to reduce fever and prevent other complications.
During illness, it is important to get adequate rest and avoid staying up late. Drinking plenty of water appropriately can enhance metabolism and help lower body temperature. In terms of diet, consuming foods rich in vitamins, easy to digest, and high in nutritional value is beneficial for recovery.