What are the common causes of sore throat?

Sore throat can be due to infection caused by:

• Viruses
• Bacteria: The most common pathogen is Streptococcus pyogenes (group A Streptococcus)
• Tonsillitis

Other causes of sore throat are:

• Allergies: this can cause postnasal drip 
• Gastroesophageal reflux (GERD): This occurs when stomach acids are backed into the throat
• Muscle strain
• Tumors: some tumors in the throat, back of the tongue or voice box (larynx) can cause sore throat. Other accompanying symptoms maybe hoarseness, difficulty in swallowing, difficulty in breathing and blood in saliva or phelgm. 

What is tonsillitis?

Tonsillitis is inflammation of the tonsils which is typically caused by bacterial infection. It is usually accompanied by fever, swollen tonsils and usually needs to be treated with antibiotics.

When should I see a doctor?

You should seek immediate medical attention if your child has:

• Difficulty breathing
• Difficulty swallowing
• Drooling
• Neck stiffness
• Neck swelling