Fever caused by tonsillitis is treated with antibiotics, preferably penicillin-based antibiotics, such as amoxicillin and amoxicillin clavulanic acid potassium, and also cephalosporin-based antibiotics. If you are allergic to both penicillins and cephalosporins, you can also use roxithromycin or azithromycin, etc. For fever caused by tonsillitis, if it exceeds 38.5℃, use non-steroidal anti-inflammatory and analgesic drugs such as ibuprofen to reduce fever and also act as a pain reliever. If the inflammation of the tonsils is more serious, you can also take oral prednisone tablets to quickly relieve the local inflammation and reduce the inflammatory response, which will help the disease heal quickly. During an attack of tonsillitis, avoid a spicy, stimulating diet, and drink plenty of water and rest.