The length of recovery time is related to the patient’s condition and treatment effect, as follows:1. Mild common viral colds: when accompanied by a cold with no air through the nose, by paying attention to rest, drink more warm water, some patients in 2-3 days the symptoms can be relieved on their own.2. Heavy colds: the patient’s nose with no air to prolong the recovery time of the symptoms of the patient, you need to take oral cold medication as well as antihistamine drugs such as loratadine, patients may need 3-5 days to make their symptoms better. Patients may need 3-5 days to get better.3. Common cold secondary to bacterial sinusitis: at this time, the recovery time of the symptoms of nasal dyspnea will be obviously prolonged, and this kind of patients need to be treated with anti-infective and localized treatment of the nose, and the recovery time of the patients may take 1-2 weeks. Therefore, due to the different conditions of the cold, the symptoms of the nose is also different from the time of improvement.