Is a Body Temperature of 35.6°C Normal for My Child After Medication?

Body temperature 35.6°C?

Hello doctor, my son is four years old and weighs 24 kilograms.
Since family members have contracted the flu, he had a temperature of 38.2°C two nights ago, and the doctor prescribed antiviral medication.
After taking the antiviral and a white packet, his temperature dropped to 35.6°C at night.
In the morning, his temperature was around 36.3°C to 37°C.
The next night, his temperature was still 35.6°C.
Is this normal? Here are the medications prescribed by the doctor: Sincapin 7 tablets, Flucil granules 4 units, Polaramine 2 mg 3 tablets, Brandyl tablets 2 3 tablets, and Panatol elixir 24 m, to be taken four times a day.
However, due to the low nighttime temperature, I have been giving him the medication three times a day.
Is the 35.6°C temperature related to the medication? Should I stop the medication?

Lai Xiaojie, 30~39 year old female. Ask Date: 2017/08/24

Dr. Xiao Kaiwen reply Pediatrics

I'm not sure how you measure your temperature.
While measuring ear temperature is convenient, it can be influenced by many factors, such as excessive earwax, incorrect insertion angle into the ear canal, and lack of regular calibration.
A method that is closer to core body temperature is rectal temperature measurement, so if the body temperature is low, you might consider taking a rectal temperature.
Panadol elixir is an antipyretic, so it may be best to refrain from giving it to observe the child's actual temperature.
Additionally, you should monitor for warning signs of influenza: difficulty breathing, cyanosis, hemoptysis, chest pain, lethargy, and prolonged high fever.
If any of these symptoms occur, you should seek immediate care at a major hospital.
Also, it seems that the medication you mentioned does not include an antiviral for influenza.

Reply Date: 2017/08/24

More Info

A body temperature of 35.6°C (95.1°F) in your child, especially after experiencing a fever, is concerning and warrants careful consideration. Normal body temperature for children typically ranges from about 36.5°C to 37.5°C (97.7°F to 99.5°F). A temperature below 36.5°C is considered hypothermic, which can be a sign of an underlying issue.

In your case, your son had a fever of 38.2°C (100.8°F) prior to taking the medications prescribed for flu symptoms. After administering the medications, his temperature dropped to 35.6°C. It is essential to note that while medications like antipyretics (fever reducers) can help lower fever, they should not typically cause such a significant drop in body temperature. The medications listed, including Panadol (which is often used to reduce fever), should be monitored closely, especially in young children.

The drop in temperature could be due to several factors:
1. Measurement Method: Ensure that the method of measuring temperature is accurate. Rectal temperatures are considered the most accurate for young children, while axillary (underarm) temperatures can be less reliable.

2. Environmental Factors: If your child is in a cool environment or is not adequately clothed, this could contribute to a lower body temperature.

3. Medication Effects: While it is unlikely that the medications alone are responsible for the low temperature, it is essential to consider the possibility of an adverse reaction or an interaction between the medications.
4. Underlying Conditions: If your child is still experiencing low temperatures after medication, it may indicate an underlying condition that needs to be addressed.
Given that your son’s temperature has remained low (35.6°C) for an extended period, it is advisable to consult with a healthcare professional. They may recommend stopping certain medications temporarily to observe if the body temperature normalizes. Additionally, they may want to conduct further evaluations to rule out any other causes for the hypothermia.

In the meantime, monitor your child closely for any additional symptoms such as lethargy, difficulty breathing, or changes in behavior. If you notice any concerning signs, seek medical attention immediately.
In summary, a body temperature of 35.6°C is not normal for your child, especially after a recent fever. It is crucial to consult with a healthcare provider to assess the situation further, consider the potential effects of the medications, and ensure your child's safety and health.

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