Patients with acute tonsillitis may have fever for 3-5 days. In addition to fever, the most common symptom of acute tonsillitis is localized throat swelling and pain, especially when swallowing, which can be significantly worse. The sore throat can be unilateral or bilateral. In addition to localized sore throat, a variety of conditions such as fever, dizziness, headache, and general malaise can occur. These symptoms can be effectively reduced and the duration of fever can be shortened after administration of sensitive anti-infective drugs. If sensitive anti-infective treatment is not administered within a short period of time, conditions such as peri-tonsillar abscesses may be complicated. The common pathogens of acute tonsillitis are gram-positive bacteria such as streptococci and staphylococci, which can be treated with penicillin or cephalosporins.