What do you think is the most common disease in the world? The answer is fairly predictable. Colds🙌🏻 Specifically, we're talking about rhinitis (runny nose) - since there are so many forms of respiratory disease, this is an important clarification. And rhinitis itself is extremely diverse. Infectious and noninfectious nature, acute and chronic, primary and secondary, hypertrophic and atrophic ... Perhaps we won't name the whole list😁