 Tonsillectomy may be a reasonable preventive measure in those with frequent throat infections ( more than three a year ) . However , the benefits are small and episodes typically lessen in time regardless of measures taken . Recurrent episodes of pharyngitis which test positive for GAS may also represent a person who is a chronic carrier of GAS who is getting recurrent viral infections . Treating people who have been exposed but who are without symptoms is not recommended . Treating people who are carriers of GAS is not recommended as the risk of spread and complications is low . 
