1, the cold is cured, but the airway is still sensitive. If you inhale irritating fumes, dust, chemical gases, cold air, etc., you will have a cough and it will last for a while. If it does not affect your sleep, you don't need to stop coughing. You can eat rock sugar stewed pears to nourish and moisten your lungs.

2, cold recovery, persistent cough is heavier, may be secondary to tracheal or lung infection, should go to the hospital for review.