How long does bad breath associated with strep throat last?

Once strep clears: The mechanism of strep-related bad breath is simple. Tonsils infected with the contagion begin to emit low levels of pus, or dead white blood cells. The decaying cells give off a protein-like odor similar to that exuding from tonsil stones, though generally not as strong. Furthermore, many cases of strep throat involve post-nasal drip and running nose, , both of which can contribute to bad breath.

Bad breath: Assuming your gums are generally healthy then you problems with strep throat should disappear as soon as your gums stop bleeding swollen gums trap food particles and bleeding gums both result in bad breath keep everything as clean as possible if it still there after all signs of strep are gone then see a periodontist to check it out.