Tonsillitis is an inflammation of the tonsils. Tonsils are 2 large lumps of tissue in the back of your child's throat. They help fight infection. Tonsillitis may be caused by a bacterial or a viral infection. Viruses that cause a cold or the flu may cause viral tonsillitis in children. A virus that causes mononucleosis (mono) may also lead to tonsillitis. Group A streptococcus is the most common bacteria that causes tonsillitis. It also causes strep throat. Tonsillitis can spread from an infected person to others through coughing, sneezing, or touching. The germs can spread through kissing or sharing food and drinks. Germs spread easily in schools and daycare centers and between family members at home.
Signs and symptoms of tonsillitis
- Fever and sore throat
- Nausea, vomiting, or abdominal pain
- Cough or hoarseness
- Runny or stuffy nose
- Yellow or white patches on the back of the throat
- Bad breath
- Rash on the body or in the mouth
