How long does it take for a child’s fever to go down?

Most of the fever in children lasts for 3~5 days, but usually the temperature can be normalized within a few hours after physical cooling or medication, but it is also related to the child’s condition, his/her own state and whether he/she is treated in time or not.
There are many causes of fever, most of them are infectious fever, infectious fever is mainly viral, bacterial, mycoplasma, etc. Generally, virus-induced fever is a self-limiting disease, and the fever lasts for 3-5 days, rarely more than 1 week. Fever caused by bacteria should be treated with antibiotics, and fever caused by mycoplasma should be treated with macrolide antibiotics.
Non-infectious fever common diseases are hematological diseases, malignant tumors, and Kawasaki disease, rheumatoid arthritis and other autoimmune diseases, fever time is not fixed, may last for several months, need to clarify the cause of the disease in a timely manner, to take comprehensive treatment.
In addition, the child’s own immune status also has an impact on the duration of fever, the immune status is good, the disease recovery is relatively fast.
In conclusion, when a child has a fever, it is important to consult a pediatrician in a timely manner to determine the cause of the illness and take targeted treatment.