Nasal congestion, sneezing and runny nose are not necessarily all colds, but they all belong to rhinitis, whether it is acute rhinitis caused by a viral infection or allergic rhinitis caused by allergies. Nasal congestion, sneezing and runny nose describe nasal symptoms, whether it is acute rhinitis caused by viral infection or allergic rhinitis caused by allergy, they all belong to rhinitis. If the acute rhinitis is caused by a viral infection, it is also a common cold and flu, so the nasal congestion, sneezing and runny nose are all rhinitis, and part of it is a cold. If the patient’s symptoms disappear quickly within a few minutes to 1-2 hours after getting away from the allergen, consider it allergic rhinitis. If the symptoms do not disappear quickly, consider a common cold, or acute rhinitis. The common cold, if there are no other complications, clears up in 5-7 days.