The study will be conducted in the Departments Otolaryngology - Head and Neck Surgery in the Western Galilee Medical Center, Nahariya, Israel. Patients who are scheduled for tonsillectomy with or without adenoidectomy will be recruited for the study. They will sign the inform consent in one of two places: in the departments before the surgery or in the clinic in the visit before the surgery. The patients will be evaluated for their ability to gargle and spit water before the surgery, after which they will be assigned to either the treatment group who will get a solution of Tantum Verde or the control group who will receive saline with mint flavor, both in identicle bottles. Randomization will be done using a random number generator program.