Post-Fever Sweating and Chills in Children

Fever and chills after the fever subsides?

The child has had a cold with a fever for a week (averaging one to three doses of antipyretics per day).
After a week, although the fever has subsided and antipyretics are no longer being used, the child continues to experience excessive sweating (with a strong odor of the antipyretic medication) and has a body temperature ranging from 34.5 to 35.5 degrees Celsius, along with a sensitivity to cold.
Is this due to the excessive use of antipyretics during the fever? Could there be any long-term effects? Should the medication be discontinued? Is the blood sugar level possibly too low at this time?

wen, 0~9 year old female. Ask Date: 2002/12/16

Dr. Zhao Yongkang reply Pediatrics

Hello,
1.
The antipyretics commonly used are typically short-acting, so their effects should diminish within 48 hours after discontinuation.
If there is still a low body temperature, please consult a physician to check for other underlying causes.
2.
When blood sugar levels are too low, children may experience symptoms such as sweating, dizziness, drowsiness, or unsteady walking.
You can initially give the child sugar cubes or sugar water, which should help improve their condition.
If you are still concerned, you may take them to the hospital for a blood glucose test.
Thank you for your message.
Wishing you peace, health, and a Merry Christmas.
Sincerely,
Dr.
Chao Yong-Kang
Director, Pediatric Department
Hsinchu Hospital

Reply Date: 2002/12/16

More Info

Post-fever sweating and chills in children can be concerning for parents, especially after a prolonged illness such as a fever. In your case, it seems your child experienced a week-long fever, which is not uncommon in viral infections. After the fever subsides, it is not unusual for children to experience symptoms like sweating and chills, which can be attributed to several factors.

Firstly, the phenomenon of sweating after a fever is often a part of the body's natural response to regulate temperature. When a child has a fever, their body temperature rises as a defense mechanism against infection. Once the fever resolves, the body may still be in a state of recovery, leading to episodes of sweating as it attempts to return to its normal temperature. This sweating can sometimes have a noticeable odor, especially if medications like acetaminophen or ibuprofen were used, as these can be excreted through sweat.

Regarding your concern about the use of antipyretics (fever-reducing medications), it is important to use these medications as directed. Overuse can lead to potential side effects, but typically, the medications themselves do not cause long-term issues when used appropriately. However, if your child is experiencing excessive sweating and chills, it may be a sign that their body is still recovering from the illness, and it might be beneficial to monitor their symptoms closely.

As for the body temperature you mentioned (34.5 to 35.5 degrees Celsius), this is slightly lower than the normal range for children, which is typically around 36.1 to 37.2 degrees Celsius. A lower body temperature can sometimes occur after a fever as the body adjusts, but it is essential to ensure that your child is not experiencing hypothermia, especially if they are feeling cold. If the chills persist or if your child appears lethargic or unresponsive, it is crucial to seek medical attention.

In terms of blood sugar levels, while it is possible for illness and fever to affect appetite and food intake, leading to lower blood sugar levels, this is generally not a direct consequence of fever or antipyretic use. If your child is eating and drinking normally, significant drops in blood sugar are less likely. However, if you notice signs of hypoglycemia, such as excessive fatigue, irritability, or confusion, it is important to consult a healthcare provider.

In summary, post-fever sweating and chills can be a normal part of recovery, but it is essential to monitor your child's overall condition. If symptoms persist, worsen, or if you have any concerns about their health, it is advisable to consult a pediatrician. They can provide guidance tailored to your child's specific situation and ensure that any underlying issues are addressed.

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