As respiratory illnesses like flu, viral fevers, and COVID-19 surge, differentiating between them is crucial for timely and correct treatment in India. While all share symptoms like fever and cough, they differ in onset, duration, and potential complications. Flu, caused by influenza viruses, often has a sudden onset. COVID-19 can spread asymptomatically and may have more severe outcomes for vulnerable groups. Viral fevers are typically milder and self-limiting. Understanding these distinctions helps individuals make informed health decisions and seek appropriate care.