Viral fever persistently above 37°C

In general, a viral fever persisting above 37°C may be caused by inadequate care, viral cold, hyperthyroidism, viral hepatitis, or viral pharyngitis, among other conditions, and requires symptomatic treatment. Specific analyses are as follows:

1. Inadequate Care

If proper daily care is not maintained during a viral infection, the virus may recur repeatedly, causing the patient's body temperature to remain consistently above 37°C. It is recommended that patients keep warm, eat a light diet avoiding spicy and greasy foods, and ensure sufficient sleep.

2. Viral Cold

A viral cold typically occurs when the body’s immunity is low, allowing viruses to invade. Symptoms include clear nasal discharge, general fatigue, muscle aches, sneezing, nasal congestion, and fever above 37°C. Under medical guidance, oral medications such as Lianhua Qingwen capsules or antiviral oral liquid may be taken to improve symptoms.

3. Hyperthyroidism

Hyperthyroidism is caused by excessive secretion of thyroid hormones, which increases sympathetic nervous system excitability and enhances sensitivity to catecholamines, leading to increased heat production in the body. Body temperature usually remains around 37°C and may be accompanied by symptoms such as fatigue and excessive sweating. Medications such as propylthiouracil tablets or carbimazole tablets may be prescribed under medical supervision.

4. Viral Hepatitis

Viral hepatitis is primarily caused by infection with hepatitis viruses and can be classified into acute and chronic types. Common types include hepatitis A, B, C, D, and E. Under medical guidance, medications such as ibuprofen sustained-release capsules or acetaminophen tablets may be used for symptom relief.

5. Viral Pharyngitis

Viral pharyngitis is an inflammation of the throat and pharynx caused by viral infection, leading to symptoms such as sore throat, cough, and congestion. These inflammatory responses may last for some time, and associated fever may result from localized inflammation. Patients may follow medical advice to take broad-spectrum antibiotics such as amoxicillin capsules or cefuroxime axetil ester capsules for anti-infective treatment.

Besides the above, persistent fever could also be caused by conditions such as viral myocarditis, viral encephalitis, or poliomyelitis. Patients experiencing the aforementioned symptoms should promptly seek medical evaluation and treatment at a qualified healthcare facility.