Healthcare guide
Which thermometer and fever supplies should you keep?
The most useful thermometer is one you can position correctly and your child will tolerate. A second method is a practical fallback, not an instruction to chase identical readings.
Age guidance
How the decision changes by stage
For a newborn, prioritise a reliable digital underarm reading and urgent professional advice when fever is suspected. Do not give over-the-counter paracetamol or ibuprofen unless specifically advised for your baby.
At two months, thermometer choice remains the main purchasing decision. Paracetamol is only suitable in defined circumstances, so check the exact label and ask a pharmacist, doctor or nurse when uncertain.
Keep a dependable thermometer and medicine that is explicitly suitable for your baby's age and weight. A temperature of 39°C or higher at three to six months needs urgent GP or NHS 111 advice.
A fast, well-tolerated thermometer can make night-time checks much easier. Keep an underarm option as a backup and use children's medicine only according to the current label and suitability rules.
Choose the temperature method your toddler will accept without compromising correct positioning. Recheck medicine strengths and record doses when more than one caregiver is involved.
The same simple setup can last through the preschool years, but medicine strengths and doses may change. Read the label each time rather than relying on memory.
What matters most
What to compare before buying
Current NHS guidance recommends a digital thermometer in the armpit for children under five. Hold the arm gently but firmly against the body for the time stated in the thermometer instructions.
An ear thermometer can be fast and comfortable, but incorrect positioning can give a misleading result, particularly with a small ear canal. Repeat an unexpected reading using careful technique or the underarm method.
A fever is usually 38°C or above, but a child can be seriously unwell without a high reading. Breathing, responsiveness, hydration, feeding, rash and your overall concern all matter.
Seek urgent GP or NHS 111 advice for a baby under three months with a temperature of 38°C or higher, or a baby aged three to six months with a temperature of 39°C or higher.
Most children over two months can take paracetamol, while most babies aged three months and over who weigh at least 5 kg can take ibuprofen. Always check the exact formulation, label and suitability, and keep each supplied oral syringe with its own bottle.
Do not give ibuprofen for chickenpox or dehydration. Ask a pharmacist or doctor first when a child has asthma or another condition that may make it unsuitable.
Do not give paracetamol and ibuprofen at the same time. Only alternate them when a doctor, nurse or other health professional advises it, and write down the medicine, dose and time.
Keep medicines locked or well out of children's sight and reach, retain the packaging and leaflet, check expiry dates and replace syringes whose markings are no longer clear.
Options to compare
3 options from the MiniYears guide
Braun ThermoScan 7
A fast in-ear thermometer that was the easiest and most reliable everyday option in our home.
- Measurement site Ear
- Current model features Age Precision, ExacTemp positioning indicator and pre-warmed tip
- Age interpretation settings 0–3 months, 3–36 months and 36+ months
- Speed and convenience Very high
- Best for Quick checks, including some night-time checks
- Ongoing requirement Correct positioning and clean Braun Hygiene Caps
- Main compromise Higher cost and technique-sensitive readings
This was our main thermometer. We found it accurate and reliable, our daughter was comfortable with it, and we could sometimes take her temperature while she was asleep.
Standard digital underarm thermometer
An inexpensive digital stick thermometer used in the armpit and worth keeping even when an ear model is preferred.
- Measurement site Armpit
- Current NHS position Recommended method for children under five
- Speed and convenience Moderate
- Best for A simple primary thermometer or dependable backup
- Ongoing requirement Hold the arm in position until the reading completes
- Main compromise Can be harder with a wriggling or sleeping child
We kept a digital stick thermometer as an alternative. It was useful to have, although we found it less convenient and its readings felt less consistent in our hands than the Braun ear thermometer.
Two-method home setup
Keep a fast, well-tolerated thermometer alongside a basic digital underarm model rather than relying on one format alone.
- Measurement sites Ear plus armpit
- Why keep both Different methods suit different ages, moods and situations
- Best for Families wanting convenience with a simple fallback
- How to use Choose the method you can position correctly; repeat an unexpected reading carefully
- Main compromise Higher initial cost and two devices to maintain
- Important limit Do not keep rechecking solely to force identical numbers
This reflects the setup that worked best for us: the Braun handled most checks comfortably, while the underarm thermometer remained available when we wanted another method.
Decision summary
Which thermometer setup should you choose?
The most useful thermometer is one you can position correctly and your child will tolerate. A second method is a practical fallback, not an instruction to chase identical readings.
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Choose the Braun for convenience
Use it as the main option when your child accepts an ear reading and quick night-time checks materially improve the experience.
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Choose underarm for a simple NHS-aligned method
Start here when low cost, minimal maintenance and the recommended under-five measurement method are the priorities.
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Keep both for flexibility
Combine a convenient ear thermometer with an inexpensive underarm backup when one method may not work in every situation.
Sources and useful links
Check the current instructions
Product specifications, availability and safety guidance can change. These links are included so you can verify the exact product and current instructions before buying or using it.