Purulent tonsillitis is a relatively severe type of tonsillitis, mainly caused by bacterial infection leading to inflammation and pus formation in the tonsils. If symptoms are severe, such as intense pain that interferes with eating and swallowing, or even high fever reaching above 38.5 degrees Celsius, hospitalization for intravenous therapy is recommended. If the condition is mild, with no fever and less severe pain and swallowing discomfort not affecting eating, oral medication or outpatient intravenous therapy can be administered.