child fever that comes and goes
Informed by recognized medical guidance
Overview
A fever is a temporary rise in body temperature, usually caused by an infection. When a child's fever comes and goes, it means their temperature goes up, returns to normal, then rises again. This pattern is common with many childhood illnesses.
Key facts
- A fever is a sign that the body is fighting an infection, not an illness itself.
- A coming-and-going fever is often seen with viral illnesses and can last 3 to 5 days.
- Most fevers are harmless and do not cause brain damage.
Yes. Fever is one of the most common reasons parents seek health advice for their children.
Children of all ages, but especially babies and toddlers, because their immune systems are still learning to fight infections.
Symptoms
- Difficulty breathing
- Bluish lips or face
- A seizure (convulsion)
- A stiff neck
- A rash that does not fade when pressed
- Being very hard to wake up
- Signs of severe dehydration (dry mouth, sunken eyes, no wet urine for 8 hours)
- ⚠A fever in a baby under 3 months old (any temperature above 38°C)
- ⚠A fever that lasts more than 5 days
- ⚠Your child is in pain or very uncomfortable
- ⚠Your child is drinking very little and not producing wet nappies
- ⚠You are worried and want a professional opinion
Common symptoms
- Body temperature above 38°C (100.4°F)
- Feels hot to the touch, especially on the forehead or back
- Flushed or red cheeks
- Shivering or sweating
- Crankiness or fussiness
- Poor appetite or drinking less than usual
- Being tired or sleepy
Symptoms in children
- May be clingy or cry more than usual
- May have cold symptoms like a runny nose or cough
- May complain of a headache or body aches
- May have an earache or tummy pain
Causes
Main causes
- Viral infections such as colds, flu, or childhood illnesses like roseola
- Bacterial infections such as ear infections, urinary tract infections, or strep throat
- Mild fever can also happen after some childhood vaccines
Risk factors
- Being a baby or young child
- Being in group settings like daycare or school where infections spread easily
- Not being up to date with recommended childhood vaccines
When to see a doctor
See a doctor urgently if:
- A baby under 3 months with any fever
- Fever lasting more than 5 days
- Fever with a purple or red rash, stiff neck, or trouble breathing
- Child is difficult to wake, very irritable, or not feeding
Book a routine appointment if:
- If the fever comes and goes for more than a few days, even if your child seems okay between fevers
- If you have any questions or concerns about your child’s health
Diagnosis
A healthcare professional will ask about your child's symptoms and medical history, take their temperature, and examine them. They will look for signs of infection and ask about the pattern of the fever.
Tests that may be done
- Urine test to check for a urinary tract infection
- Blood tests to look for signs of infection
- Throat or nose swab to test for viruses or bacteria
- Chest X-ray if a chest infection is suspected
What to expect at your appointment
The doctor may give you advice on home care and explain what to watch for. If the cause is unclear or the fever is persistent, they may arrange further tests.
Treatment
Treatment depends on the cause. Most fevers are caused by viruses and do not need specific medical treatment. The main goal is to keep your child comfortable and well hydrated.
Self-care at home
- Offer plenty of fluids like water, milk, or oral rehydration solution
- Let your child rest, but allow quiet play if they feel like it
- Dress them in light clothing and keep the room comfortable
- Give smaller, more frequent meals or snacks
- Check and record their temperature regularly
Medical treatments
If a bacterial infection is found, a doctor may prescribe antibiotics. For fever itself, your doctor or pharmacist can advise on age-appropriate fever-reducing medicines. Do not give any medication without professional advice.
When is surgery considered?
Not applicable for this condition.
Living with this condition
While your child has a coming-and-going fever, focus on comfort and monitoring. Keep track of how many days the fever has lasted and how your child behaves between fevers. This information can help if you need to speak to a doctor.
Lifestyle tips
- Encourage plenty of rest and quiet activities
- Keep your child home from school or daycare until they are fever-free for at least 24 hours
- Wash hands often to prevent passing the infection to others
Diet and exercise
Let your child eat what they want and drink as much as possible. You do not need to force food, but make sure they stay hydrated. Once the fever has gone, they can gradually return to normal activities and exercise.
Mental health and emotional wellbeing
Caring for a child with a recurring fever can be worrying for parents and carers. It is normal to feel anxious. Try to stay calm, ask for help when needed, and remember that most fevers are harmless and will pass.
Prevention
You cannot always prevent fever, but you can reduce the chance of infections that cause fever by practising good hygiene and keeping vaccinations up to date.
Vaccines
Childhood vaccines protect against many serious infections that can cause fever, such as measles, mumps, rubella, and flu. Follow the vaccination schedule recommended by your regional health authority.
Screening programmes
There is no routine screening for fever, but regular well-child check-ups help ensure your child is healthy and developing normally.
Complications
If left untreated
- Dehydration, if the child does not drink enough fluids
- Febrile seizure (a fit triggered by fever) in some children
- Rarely, an untreated bacterial infection can spread and become serious
Long-term outlook
Most fevers that come and go are caused by mild viral illnesses and clear within a few days. Even with bacterial infections, treatment is very effective. With care, rest, and support, your child will likely recover fully.
Find support
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Related conditions
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 31, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.