Are there any alternatives to surgery? Surgery is the only dependable way to stop tonsillitis that keeps on coming back. In children, a long course of antibiotics may break a cycle of frequent infections. In adults, this treatment is less likely to be effective, especially following glandular fever. Patient Information Tonsillectomy in Adult Day Surgery Unit _____ We have produced this information as a guide to your operation. Your tonsils are lumps of tissue at the back of your throat. Sometimes they get enlarged and infected - called tonsillitis - resulting in a sore throat. The operation to remove the tonsils, called a tonsillectomy, is often performed because of frequent bouts of tonsillitis.