Common symptoms of infant and toddler tonsillitis include sore throat, difficulty swallowing, fever, fatigue, headache, body aches, and chills. The tonsils may become congested and swollen, and complications such as myocarditis and nephritis may occur in severe cases.

When a child develops tonsillitis, common symptoms include sore throat, earache, fever, chills, headache, and overall weakness. In severe cases, complications such as sepsis and acute rheumatism may occur.