Febrile Seizure Treatment in Delhi, India

A febrile seizure is a convulsion that occurs in young children due to a sudden spike in body temperature, often from an infection like the flu, a cold, or an ear infection. These seizures typically affect children between 6 months and 5 years of age and can be alarming for parents, though they are usually harmless and short-lived.

Febrile seizures usually last less than 5 minutes and involve twitching or jerking of the arms and legs, loss of consciousness, or eye rolling. After the seizure, the child may appear sleepy or confused but generally recovers fully without long-term effects.

While febrile seizures rarely cause serious health issues, it’s important to consult a doctor to rule out other causes and to understand how to manage them if they happen again.

Febrile seizures are broadly categorised into the following different types based on their complexity:

Simple Febrile Seizure

This is the most common type and usually not a cause for concern.

• Lasts less than 15 minutes
• Happens only once in 24 hours
• Affects the whole body (arms and legs may shake)
• Child recovers quickly and fully afterwards

Prognosis: Generally considered benign and do not cause long-term brain damage, learning disabilities, or an increased risk of epilepsy.

Complex Febrile Seizure

This type is less common and may need closer medical follow-up.

• Lasts more than 15 minutes
• Can happen more than once in a day
• May affect just one side or part of the body
• Child may take longer to recover or need extra tests

Prognosis: While still generally considered benign for most children, complex febrile seizures are associated with a slightly higher, though still small, risk of developing epilepsy later in life compared to simple febrile seizures.

Febrile Status Epilepticus (FSE) is a rare and more severe subtype of complex febrile seizures, defined as a febrile seizure lasting longer than 30 minutes. This is considered a medical emergency and requires immediate intervention to stop the seizure activity.

It's important for parents and caregivers to be aware of these distinctions, as they can help healthcare providers in assessing the situation and determining the appropriate course of action, though any febrile seizure, especially the first one, warrants medical evaluation.

While the exact cause of febrile seizures is not always known, they can be triggered by the following factors:

Fever

The most common cause of febrile seizures is a sudden spike in body temperature (can result from a viral or bacterial infection), often above 38°C (100.4°F). A febrile seizure usually occurs during the initial phase of a fever, when the body temperature rises quickly.

Immature Brain

Febrile seizures tend to occur in younger children because their nervous system is still developing, making their brains more sensitive to fever-induced changes. As the brain matures, this vulnerability decreases, which is why febrile seizures usually do not occur after age 5 (90% of brain development completes by age 5).

Recent Vaccination

In rare cases, a child may experience febrile seizures after getting MMR (measles, mumps, rubella) vaccine, DTaP (diphtheria, tetanus, pertussis) vaccine, or influenza vaccine.

The following factors can increase a child's likelihood of experiencing febrile seizures:

Age

Most febrile seizures occur between 6 months and 5 years of age, with the highest incidence between 12 to 18 months. During this period, the brain is rapidly developing, and the nervous system is not yet fully mature, making it more sensitive to sudden changes in body temperature.

Genetic Factors

Children with a first-degree relative (parent/sibling) who had febrile seizures are at significantly higher risk for the condition, as genetics can affect a child’s seizure threshold, which is how easily their brain becomes overexcited during a fever.

Developmental Disorders

Cerebral palsy, autism spectrum disorder (ASD), and other developmental disorders can increase a child’s risk for febrile seizures by delaying myelination-a critical biological process in brain development where a fatty substance called myelin forms a protective sheath around the axons (nerve fibers) of neurons. Delayed myelination can affect how the brain regulates temperature and responds to fever. Developmental disorders can also increase susceptibility to febrile seizures by causing structural or functional abnormalities in the brain that make it more excitable during a fever.

Hyponatremia

Low blood sodium or hyponatremia occurs when the amount of sodium in blood is abnormally low. Hyponatremia can potentially lower the seizure threshold during febrile illnesses, increasing a child’s risk for complex febrile seizures.

Gender

Studies indicate that boys are about 1.3 to 1.5 times more likely to experience febrile seizures than girls. Though the exact reason why boys are more susceptible to febrile seizures than girls is not known, several hypotheses exist. A couple of which are:

• Boys may develop higher fevers more rapidly, which is a known seizure trigger
• Sex-based differences in brain development

Symptoms of febrile seizure can vary, depending on the type of seizure and how a child's brain reacts to seizure triggers. Here are some common febrile seizure symptoms:

Loss of Consciousness

When a febrile seizure occurs, abnormal electrical activity spreads across the brain. As a result, the child may suddenly lose awareness of their surroundings, become unresponsive, stare blankly, and appear to pass out (often occurs at the onset of the seizure).

Involuntary Muscle Movements

During a febrile seizure, abnormal electrical signals are sent to muscles, especially those of the limbs and face. The result is involuntary muscle contractions that often manifest as jerking, twitching, or stiffening.

Eye Rolling

The brainstem and midbrain (two important parts of the central nervous system, located at the base of the brain) help control eye movements. A generalised seizure may affect these areas, leading to eye deviation or rolling. In many cases, eye rolling (the upward or sideward movement of the eyes) is the first sign of a febrile seizure.

Irregular Breathing

Abnormal electrical activity during a febrile seizure can affect the parts of the brain that control breathing, leading to shallow or noisy breathing. In some cases, apnea (temporary cessation of breathing) occurs. Typically, a child starts breathing normally after a febrile seizure ends.

Facial Pallor

A febrile seizure can affect the autonomic nervous system and the body may respond by diverting blood flow from the skin to vital organs such as the brain and heart. This results in reduced blood flow to the skin, leading to facial pallor (facial skin paleness).

Early and accurate febrile seizure diagnosis guides treatment decisions, and can help improve patient outcomes. Here are some diagnostic techniques healthcare professionals use to identify the root cause of febrile seizures:

Clinical Assessment

During a clinical assessment, the doctor asks the child questions about their symptoms and medical and family history. A thorough assessment can help doctors distinguish febrile seizures from other conditions such as epilepsy and meningitis.

Physical and Neurological Examination

During a physical examination, the doctor takes the patient’s vital signs (blood pressure, body temperature and heart rate and respiratory rate). They may also examine the child’s ears, throat, and skin for signs of infection.

Often a part of a physical examination, a neurological examination involves

• Checking the pupillary light reflex (how the pupil responds to changes in intensity of light), eye movements, and facial symmetry to see if cranial nerves are working properly
• Checking reflexes to assess motor function
• Observing walking patterns to identify balance problems or asymmetry

Investigations

If seizures recur, the child is <12 months old or neurological abnormalities are observed, doctors may order the following tests:

• Lumbar puncture: Can help distinguish febrile seizure from central nervous system (CNS) infections
• Blood tests: Help doctors determine whether febrile seizures are caused by bacterial/viral infections or inflammation 
• Urinalysis: Doctors order a urinalysis to check if UTI causes fever

Electroencephalogram

An EEG may be ordered if the patient has complex febrile seizures, epilepsy runs in their family , or seizures originate in one specific area (or "focus") of the brain. It can help doctors rule out epilepsy or other neurological disorders.

CT Scan/MRI

Though rarely needed, a CT scan/MRI may be considered if the child has prolonged seizures that affect one part or side of the body or neurological exam findings indicate structural brain abnormalities. 

Note- A CT scan or MRI can indirectly (rather than directly) assist doctors diagnose febrile seizure by helping rule out other causes of seizures

Effective and timely febrile seizure treatment targets the root cause of the condition, helping prevent complications. Here are some febrile seizure treatment options:

Medications

If a child has prolonged seizures or febrile seizures recur, their doctor may prescribe benzodiazepines (a class of medications) such as diazepam, lorazepam, or midazolam. These medicines relax the muscles and calm the brain by enhancing the effects of GABA, a neurotransmitter that helps calm the brain.

Intermittent Prophylaxis

A treatment approach used in children who have recurrent febrile seizures, intermittent prophylaxis involves administering anticonvulsant medication at fixed intervals (regardless of symptoms), during specific high-risk periods (such as during fever). In intermittent prophylaxis, medications are started at the onset of fever and continued for 2–3 days or until the fever subsides.

Continuous Prophylaxis

This treatment strategy is considered if the child has recurrent, prolonged febrile seizures (>15 minutes) or a family history of epilepsy or their test reports indicate underlying neurological abnormalities. The treatment approach involves administering antiepileptic drugs every day.

While it's not always possible to prevent febrile seizures, especially during a sudden spike in body temperature, one can significantly reduce their risk by following the below febrile seizure prevention tips:

Manage Fever

Because most febrile seizures occur during a fever, it’s important that parents of children with fever monitor their body temperature at regular intervals and administer antipyretics (fever-reducing medications) such as Paracetamol and Ibuprofen to them (as instructed by the child’s doctor). Parents can also give sponge baths using lukewarm water to their children (promotes heat loss through evaporation).

Do Not Ignore Underlying Infections

Many febrile seizures are triggered by common respiratory or gastrointestinal infections. If a child has symptoms of an infection, their parents should:

• Seek medical care promptly
• Make sure the child completes the medication course
• Keep the child hydrated and well-rested

Identify and Avoid Triggers

Parents of children at high risk for febrile seizures should:

• Make sure they stay hydrated throughout the day as dehydration can trigger febrile seizures by leading to an electrolyte imbalance, increasing body temperature, and affecting brain function
• Dress their children in light clothing

Realise the Importance of Regular Pediatric Check-ups

Parents of children who have febrile seizures should take them to a pediatrician regularly. During a pediatric check-up, the pediatrician performs a neurological assessment and educates the parents about risk factors, triggers and febrile seizure prevention strategies.

While most febrile seizures are harmless, some can lead to the following complications if managed or treated poorly. 

Recurrence

Around 30-40% of children have recurring seizures after their first febrile seizure. The risk for recurrent febrile seizures significantly increases if:

• The child gets their first febrile seizure before 18 months of age
• The child has a family history of febrile seizures
• There is a shorter than normal time gap between fever onset and the first febrile seizure

Epilepsy

If ignored or not treated properly, simple febrile seizures can increase a child’s risk for epilepsy by 2-3%. Complex febrile seizures, on the other hand, can increase epilepsy risk by up to 5-10% if managed poorly.

Cognitive Impairment or Behavioral Problems

Complex febrile seizures, especially prolonged ones (febrile status epilepticus), may lead to memory problems or learning difficulties or increase the risk of attention-deficit/hyperactivity disorder (ADHD). 

Injury

Though rare, injuries (such as tongue biting and accidental inhalation of saliva or vomit) during febrile seizures can occur due to sudden and involuntary muscle movements.

1. What should I do immediately if my child has a febrile seizure?

Stay calm. Gently place your child on their side on the floor or a bed to prevent choking. Loosen any tight clothing around their neck. Do not put anything in their mouth or try to stop the seizure movements. Note the time the seizure started and how long it lasts. Seek immediate medical attention if the seizure continues for more than 5 minutes.

2. Should I take my child to the emergency after a febrile seizure?

If it’s your child’s first seizure, the seizure lasts longer than 5 minutes, or your child isn’t recovering as expected, it’s important to seek immediate medical attention. Even if the seizure appears typical, a medical evaluation is always recommended.

3. Can teething cause febrile seizures?

Teething alone does not cause febrile seizures. However, if teething is accompanied by an infection that leads to a high fever, it could trigger one.

4. Can febrile seizures happen without a high fever?

Yes, while febrile seizures are typically triggered by a sudden rise in temperature, they can sometimes occur when the fever is just beginning, even before the fever becomes noticeable.

5. Is it safe to bathe a child with a fever to prevent a seizure?

Sponge baths with lukewarm (not cold) water can help bring down a child’s temperature gently. Never use ice-cold water or alcohol rubs, as these can cause shivering and potentially raise the body temperature further.

6. Can febrile seizures be a sign of epilepsy?

Febrile seizures are usually not a sign of epilepsy. However, if your child has repeated or complex febrile seizures, your doctor may recommend tests to rule out underlying neurological conditions.

7. Should my child avoid routine vaccinations after a febrile seizure?

No, routine vaccinations are still important. Inform your paediatrician about the seizure history so they can guide you on appropriate vaccination timing and precautions.

8. Will my child need lifelong medication after a febrile seizure?

In most cases, long-term medication is not needed. Medication may be considered in specific situations involving frequent or prolonged seizures.

9. Can dietary changes reduce the risk of febrile seizures?

There is no specific diet that prevents febrile seizures. However, ensuring your child stays hydrated and gets proper nutrition supports overall health and may help reduce fever-related complications.

10. Are there any long-term effects on a child's development after a febrile seizure?

For the vast majority of children, febrile seizures do not impact cognitive development, school performance, or behaviour in the long term.

11. Can a child return to school or daycare after a febrile seizure?

Yes, once your child has recovered fully and the fever has been managed, they can safely return to regular activities. It's always advisable to discuss this with your doctor before resuming school or daycare.

Reviewed by Dr. Puneet Agarwal, Principal Director - Stroke and Dementia, Neurosciences, Neurology, on 11 August 2025.