The perennial clinical dilemma of when to treat sore throats with antibiotics has taken on new urgency amid rising concerns about invasive group A streptococcal infections. This analysis reveals surprisingly modest prevention potential that challenges current antibiotic stewardship assumptions. Swedish epidemiological modeling demonstrates that even comprehensive throat swabbing and antibiotic treatment strategies would prevent only a small fraction of severe streptococcal disease cases. Universal swabbing of all sore throat patients attending healthcare providers, followed by antibiotic treatment for those testing positive for group A streptococcus, could theoretically prevent up to 6.7% of invasive infections in children and merely 2.8% in adults. When applying the commonly used Centor clinical scoring criteria to target higher-risk patients, the prevention rates drop further to 1.6% in children and 1.2% in adults. These findings expose a fundamental disconnect between the frequency of uncomplicated throat infections and the occurrence of life-threatening invasive disease. The analysis suggests that most severe streptococcal infections likely arise through transmission pathways independent of the typical sore throat presentations seen in primary care settings. This research arrives at a critical juncture when healthcare systems worldwide grapple with both antibiotic resistance concerns and recent upticks in severe streptococcal disease. The modest prevention potential identified here underscores the complexity of invasive group A streptococcus epidemiology and suggests that broader public health interventions, rather than expanded throat swabbing protocols, may be needed to meaningfully reduce severe disease burden.