The most common reason for one nasal ventilation and one non-ventilation is because of chronic simple rhinitis or the initial symptoms of chronic hypertrophic rhinitis. Its typical nasal congestion is characterized by intermittent nasal congestion, which may be relieved during daytime labor and worsened at night when sitting still or cold, and there is a typical alternating nasal congestion, with the nasal cavity on the lower side obstructing the nasal ventilation on the upper side when lying on the side. The alternating nasal congestion occurs again when turning to the other side, and may be accompanied by mild nasal discharge, some of which may flow into the pharyngeal cavity and cause discomfort in the throat. Its treatment plan is firstly to use the nose spraying drugs coleus and rhinocort, you can take the oral rhinitis drug Cangzhi Rhinitis Drops or Nasal Yuan Shu Oral Liquid.