How to reduce a child's fever of 39°C as quickly as possible
Sep 11, 2025
Source: Cainiu Health
Dr. Zhou Xiaofeng
Introduction
In general, a child's fever of 39°C may be caused by factors such as high ambient temperature, excessive clothing, influenza, tonsillitis, acute gastroenteritis, and other reasons. It is recommended to seek timely medical attention, identify the underlying cause, and then proceed with general treatment, medication, or other methods under a doctor's guidance to reduce the fever quickly. During daily care, the child's body temperature should be closely monitored and recorded every 1–2 hours.
Generally, a child's fever of 39°C may be caused by factors such as high environmental temperature, excessive clothing, influenza, tonsillitis, acute gastroenteritis, and others. It is recommended to seek timely medical attention, identify the underlying cause, and then proceed with general treatments or medication under a doctor's guidance to reduce the fever quickly. The detailed analysis is as follows:
1. High environmental temperature: A high indoor temperature or poor air circulation may affect the child's ability to dissipate heat, causing the body temperature to remain at 39°C. Immediately open windows for ventilation, maintain the indoor temperature at 24-26°C, and use a humidifier to keep humidity at 50%-60%. Avoid directly blowing air conditioning at the child. Improving the environment can help dissipate heat and reduce fever.
2. Excessive clothing: Wearing thick clothing or being overly covered can hinder the release of body heat and worsen the fever. Reduce clothing promptly, choose loose and breathable cotton garments, and cover only the abdomen to prevent chilling. If the child sweats, gently wipe the sweat with a dry towel, keep the skin dry, and promote heat dissipation.
3. Influenza: Influenza viruses can trigger immune responses in the body, leading to high fever (39°C). Follow medical advice to use medications such as children's paracetamol suspension drops, ibuprofen suspension, oseltamivir phosphate granules, etc., to relieve fever and combat viral infection.
4. Tonsillitis: Bacterial invasion of the tonsils causes inflammation and releases toxins, resulting in persistent high fever. Under a doctor's guidance, use antibiotics such as amoxicillin granules for children, cefaclor dry suspension, azithromycin dry suspension, etc., to fight infection.
5. Acute gastroenteritis: Consumption of contaminated food can cause bacterial or viral infection in the gastrointestinal tract, leading to fever of 39°C accompanied by vomiting and diarrhea. In addition to fever-reducing medications as directed by a physician, medications such as smectite powder, Bifidobacterium quadruple viable tablets, oral rehydration salts III, etc., should also be used to stop diarrhea, regulate intestinal flora, and prevent dehydration.
Monitor the child's body temperature closely in daily care, measuring and recording it every 1-2 hours. The diet should be light and easily digestible, with small, frequent meals to ensure sufficient energy intake.
