Yahoo TV

A panel of Food and Drug Administration advisors say that phenylephrine, commonly found in over-the-counter decongestants, doesn't work to relieve congestion. This is not the first time that this key ingredient’s effectiveness has come into question. Yahoo Finance’s Akiko Fujita and Anjalee Khemlani look at the history of the controversy and what this news could mean for consumers as the colder months come.