The symptoms of acute tonsillitis are quite varied, with the most common symptom being pain in the tonsil area. Clinically, sudden onset of redness and pain in the tonsil area may occur, and in severe cases, there might also be fever, or swallowing or breathing difficulties. Overall, it is considered a common illness. Upon examination, the mucous membranes of the throat can be observed to have acute congestion, and the tonsils may be red and swollen to a first or second degree. In more severe cases, there might be third-degree swelling, and some patients may experience purulent infections in the tonsil area, which would require consideration for timely antibiotic treatment and regular follow-up examinations.