“Yes, mom, we heard you! We know it’s cold out there. We’re grabbing our coats right now!” “This scratchy throat and runny nose will definitely get better with some homemade chicken soup.” “Of course we promise to cough into our elbows.” We’ve all heard our mothers’ best remedies and advice for cold and flu season, as well as some old wives’ tales that have been passed along from generation to generation. Whether ...