A person with tonsillitis is likely to feel throat pain, headache and ear pain and may have trouble breathing through the mouth or swallowing, according to WebMD. Children with tonsillitis may also experience stomach pain, nausea and vomiting.
Additional symptoms of tonsillitis are red, swollen tonsils that may have yellow patches on them, fever, hoarseness, bad breath and stiff neck, according to the Mayo Clinic. The Mayo Clinic also notes that young children sometimes drool because of painful or difficult swallowing and may exhibit unusual fussiness and refuse food.
WebMD reports that tonsillitis can be bacterial or viral in nature. Doctors prescribe antibiotics to treat cases of tonsillitis caused by bacteria, but the body must overcome a viral form of tonsillitis on its own, according to WebMD.