How Long Does Strep Last After Starting Antibiotics?
Alternative Names Pharyngitis – streptococcal; Streptococcal pharyngitis Prevention Most people with strep are contagious until they have been on antibiotics 24 – 48 hours. Thus, they should stay home from school, daycare, or work until they have been on antibiotics for at least a day. Get a new toothbrush after you are no longer contagious, but before finishing the antibiotics. Otherwise the bacteria can live in the toothbrush and re-infect you when the antibiotics are done….