Sore Throat in Children

Viral or Bacterial? Does My Child Need Antibiotics?

Sore throat is very common in children. Most acute sore throats are caused by viral infections and improve with supportive care.

However, some children develop streptococcal throat infection, which may require antibiotic treatment.

The important point is:

A red throat or white patches on the tonsils alone cannot reliably tell us whether the infection is viral or bacterial.

The child's age, symptoms, examination and, when appropriate, a throat swab help guide the diagnosis.

1. Is It a Viral Infection?

Viral infections are the most common cause of acute sore throat in children.

They often occur together with other symptoms such as:

• Runny or blocked nose
• Cough
• Hoarse voice
• Fever
• Tiredness

Common viruses include those causing ordinary colds, influenza-like illnesses and other respiratory infections.

2. Could It Be Streptococcal Throat Infection?

Group A Streptococcus (GAS) is an important bacterial cause of acute tonsillopharyngitis, particularly in school-aged children.

It may cause:

• Sudden sore throat
• Fever
• Painful swallowing
• Red and swollen tonsils
• Enlarged or tender neck glands
• Tonsillar exudate or white patches
• Headache
• Abdominal pain, nausea or vomiting in some children
• Sometimes a fine red rash (scarlet fever)

“Does having white spots on the tonsils mean my child needs antibiotics?”

Not necessarily.

White patches or pus on the tonsils can occur with both viral and bacterial infections.

Similarly, a very red throat does not automatically mean a bacterial infection.

The overall clinical picture is more important.

3. “How Do You Know If It Is Strep Throat?”

Doctors do not rely on white spots or a red throat alone.

We assess the pattern of symptoms and examination findings, often using a clinical approach based on the McIsaac/Centor criteria, which considers:

• Fever
• Absence of cough
• Swollen or tender neck glands
• Red or swollen tonsils, with or without white patches
• The child’s age

The more of these features that are present, the higher the likelihood of streptococcal (strep) throat.

Antibiotics should be used when there is a good clinical reason to suspect a bacterial infection—not simply because the throat looks red or has white patches.

4. “So, Does My Child Need Antibiotics?”

Not every sore throat needs antibiotics.

Viral sore throat → supportive care

Confirmed or strongly suspected streptococcal infection → antibiotics may be recommended.

Appropriate antibiotic treatment for streptococcal infection can shorten symptoms, reduce transmission and help prevent complications.

However, unnecessary antibiotics can cause side effects and contribute to antibiotic resistance.

The goal is not “antibiotics or no antibiotics.” The goal is using antibiotics when they are actually needed.

5. “My Child Has Ulcers in the Throat. Is That Different?”

Yes.

Some viral infections can cause small ulcers or blisters in the mouth and throat.

(i) Herpangina

Herpangina is usually caused by enteroviruses.

Children may develop:

• Fever
• Sore throat
• Painful swallowing
• Small ulcers or blisters, typically towards the back of the mouth and throat

It is more common in younger children.

(ii) Hand, Foot and Mouth Disease (HFMD)

HFMD can also cause painful mouth ulcers.

Look for:

• Mouth ulcers
• Small blisters or spots on the hands and feet
• Sometimes lesions around the buttocks or other areas
• Fever and reduced appetite

Mouth ulcers + fever + hand/foot lesions → think about HFMD.

Both herpangina and HFMD are usually viral infections, so antibiotics are generally not helpful.

6. “When Should I Bring My Child to See a Paediatrician?”

Arrange a medical assessment if:

• Throat pain is severe or persistent
• Fever is significant or persistent
• Your child has difficulty swallowing
• There are swollen or tender neck glands
• There is a new rash
• There are white patches on the tonsils
• Your child is drinking less or passing less urine
• Your child is unusually tired or unwell
• Symptoms are not improving
• You suspect streptococcal infection
• Your child has recurrent episodes of significant sore throat

7. What to Expect During the Consultation

At our clinic, we start with a paediatric consultation to identify the likely cause of the sore throat.

Depending on the clinical assessment, we may consider:

• Examination of the throat and tonsils
• Assessment for viral features
• Assessment for possible streptococcal infection
• Viral swab/testing when clinically indicated
• Assessment of hydration and overall condition
• Appropriate supportive treatment
• Antibiotics when bacterial infection is suspected or confirmed and treatment is indicated

Assess → Identify the cause → Treat appropriately → Antibiotics when needed

The simple message for parents:

Sore throat ≠ antibiotics.

Most are viral, but some are bacterial and need treatment.

And if your child has fever + sore throat + no cough/runny nose, significant tonsillar swelling or exudate, or you are simply unsure, let us assess your child rather than guessing at home.