Allergies, Cold, Flu, or COVID-19?Blog Posts Allergies, Cold, Flu or COVID-19? Pollen is in the air, causing people with allergies to suffer!And for the past 2+ years, with any cough, throat tickle, or sneeze many people wonder:“Oh No! Do I have COVID-19?!”For the millions of people that suffer from allergies, this question becomes even more important, and a little more complex to answer.Making it more difficult are the flu and colds that are infecting people today.While some symptoms of COVID, influenza, a cold, and allergies overlap, there are several differences.Below is a chart detailing the differences between allergies, a cold, the flu, and COVID-19.