How to tell if you have a cold, flu, or just allergies

It can be hard to tell the difference between having a cold, flu, or just allergies. NYU Langone Director of General Otolaryngology Erich P. Voigt, MD, breaks down the symptoms. -------------------------------------------------- Follow BI Video on Twitter: Follow BI on Facebook: Read more: -------------------------------------------------- Business Insider is the fastest growing business news site in the US. Our mission: to tell you all you need to know about the big world around you. The BI Video team focuses on technology, strategy and science with an emphasis on unique storytelling and data that appeals to the next generation of leaders – the digital generation.