Should I receive intravenous fluids if I've had a fever from a viral infection for three days?

Fever refers to an elevated body temperature. If a fever caused by a viral infection has lasted for three days, whether intravenous (IV) infusion is needed depends on the patient's specific condition.

Generally, if the patient has persistent high fever accompanied by significant symptoms such as fatigue, headache, cough, sore throat, or chest tightness, IV infusion therapy might be necessary. Infusion can help replenish fluids and essential nutrients, supporting the body’s recovery. However, IV infusion also carries certain risks, including infection, phlebitis, and allergic reactions; therefore, it should only be performed under a doctor’s supervision.

If symptoms are mild, body temperature is not high, or the fever has started to subside, treatment can include oral medications, rest, and increased fluid intake. If symptoms worsen or fail to improve, prompt medical attention is recommended to receive proper diagnosis and treatment advice from a healthcare professional.

Patients are advised to maintain good personal hygiene—frequently washing hands and avoiding touching eyes, nose, or mouth with sleeves or hands. Wearing a mask when going out, engaging in moderate exercise, and ensuring adequate sleep are also recommended.