What causes recurrent fever in children?

Generally speaking, the main causes of recurrent fever in children include immature immune system development, improper care, acute upper respiratory tract infections, pediatric pneumonia, and Kawasaki disease. If symptoms of discomfort appear, it is recommended to seek timely diagnosis and treatment at a regular hospital. A detailed explanation is as follows:

1. Immature Immune System Development

Children's immune systems are not yet fully developed, and their immune cells have a weaker ability to clear pathogens, making them more susceptible to bacterial and viral infections, which can lead to recurring fevers. In daily life, it's important to ensure that children consume adequate amounts of protein and vitamins, such as eggs and broccoli, and engage in 20–30 minutes of outdoor activities like walking or playing ball each day to enhance resistance and reduce the chances of infection.

2. Improper Care

If parents fail to adjust children's clothing according to temperature changes or if children remain in damp clothing after sweating, they may become chilled or overheated, leading to recurring fevers. Close attention should be paid to weather changes, clothing should be added or removed promptly during large temperature fluctuations between morning and evening, and wet clothing should be replaced immediately after sweating to keep the body dry and reduce the risk of fever.

3. Acute Upper Respiratory Tract Infection

Repeated viral or bacterial infections of the upper respiratory tract cause inflammation, which leads to recurring fever, often accompanied by coughing and nasal congestion. Under a doctor's guidance, medications such as pediatric paracetamol and chlorpheniramine granules, cefaclor dry suspension, and ribavirin granules can be taken to fight infection and relieve symptoms. Additionally, encouraging the child to drink more warm water helps promote metabolism.

4. Pediatric Pneumonia

Inflammation caused by pathogen infection in the lungs continuously stimulates the body, leading to recurring fever, often accompanied by rapid breathing and phlegm production. Under a doctor's guidance, ambroxol and clenbuterol oral solution, cefixime granules, and pediatric cough and asthma relief granules can be used to relieve cough and phlegm while fighting infection. If the lung inflammation is severe, intravenous administration of penicillin sodium injection may be required to control the infection.

5. Kawasaki Disease

The cause is associated with infection and immune dysfunction. Symptoms include recurring high fever, accompanied by rashes and swollen lymph nodes. Under a doctor’s guidance, medications such as aspirin enteric-coated tablets, intravenous immunoglobulin, and dipyridamole tablets may be used to suppress inflammation and prevent coronary artery lesions. If coronary artery aneurysms develop, coronary artery bypass surgery may be necessary.

In daily life, it is important to maintain good indoor air circulation by regularly opening windows for ventilation; avoid taking children to crowded places to reduce the risk of infection; encourage children to wash their hands frequently and avoid touching their mouths and noses with their hands; and schedule regular vaccinations to enhance immunity and maintain overall health.