Word on the street has it you should replace your toothbrush after suffering from a cold, the flu or a bout of strep throat. That may not be necessary — at least when it comes to sore throats, according to a new study.
Word on the street has it you should replace your toothbrush after suffering from a cold, the flu or a bout of strep throat. That may not be necessary — at least when it comes to sore throats, according to a new study.