If your nose is still blocked after a cold, you need to take comprehensive treatment, such as improving lifestyle habits, adjusting dietary structure, medication and so on. 1. Improve living habits: Nasal congestion is caused by the edema and congestion of the mucous membrane of the upper respiratory tract. When the cold is over, the inflammation in the body subsides, but the edema and congestion of the mucous membrane of the upper respiratory tract have not yet been fully restored, so it will cause nasal congestion, so you need to develop good living habits, pay attention to keep the body warm to avoid catching a cold. 2. Adjust the diet structure: patients can usually drink more warm water, the diet needs to be light, avoid spicy, fried and other stimulating foods, and eat more vitamin-rich fresh fruits and vegetables. 3. medication: for a cold well nose or the phenomenon of the more serious, you can use physiological sea saline rinse nasal cavity, relieve the symptoms of nasal congestion, if necessary, you can use ephedrine nasal spray, to relieve the symptoms. If you have a good cold or nose, you need to take a comprehensive treatment, the drug should be under the guidance of a doctor, not to be used indiscriminately, so as not to cause adverse consequences.