The onset of a cold is very rapid, with symptoms such as nasal congestion and runny nose during the incubation period, followed by thickening of the nose, sore throat, loss of taste, hoarseness, etc. Generally, there is no fever or systemic symptoms, and it will go away on its own after 5-7 days. However, during the cold period, you must pay attention to rest, drink more water, exercise, eat easily digestible food and pay attention to ventilation, and you will be relieved on your own. In the case of influenza, it takes even longer and usually does not heal on its own, and the cold mentioned here is usually the common cold.