Symptoms of a viral cold include elevated body temperature, headache, sneezing and runny nose, which can be very unpleasant. Basically, everyone will suffer from a viral cold many times in their lifetime. The most common symptoms of a cold include fever, headache, fatigue, aching limbs, stuffy nose, runny nose, etc. Many people know if they have a cold because almost everyone has had a cold at some point in their lives, and people pass on this knowledge to each other. If it is a common cold, generally speaking, it is not contagious, or the contagiousness is very weak, the seasonality is not obvious, the patient is usually caused by cold, most of them may not have fever or moderate fever, not accompanied by chills, no or very few systemic symptoms, the course of the disease lasts 1 to 3 days, rarely complications such as otitis media, pneumonia and meningitis. Influenza is a class C infectious disease, with obvious seasonality, most of them have a sudden onset, may have a high fever, lasting 39 to 40 degrees with chills, the course of the disease is usually 3 to 5 days, the systemic symptoms are obvious, such as generalized muscle pain, weakness, can be complicated by otitis media, pneumonia, encephalitis, and can be life-threatening in serious cases. In short, if you have fever, headache, weakness, nasal congestion, runny nose and other symptoms after getting cold, it may be a viral cold.