The symptoms of nasal sound will appear after the cold is well, indicating that this cold itself is a nasal virus caused by acute nasal congestion and edema, because the retraction is not very obvious, so it will lead to nasal congestion, nasal sound symptoms, or before the cold has been rhinitis, sinusitis symptoms, this time will aggravate the nasal congestion and edema, resulting in increased symptoms and nasal sound symptoms. At this time, the main focus is to improve nasal ventilation, for example, you can use the nose spray drug Fu Shu Liang or Reno Cort, at the same time, you can take oral rhinitis drugs, Cang Er Zi Rhinitis Drops or Nasal Yuan Shu Oral Liquid, when the nasal ventilation improved, nasal voice will also improve.