the nasal septum, which divides one side of the nose from the other, is bent or
deviated to one side of the nose, therefore causing a blockage of air flow, and
nasal blockage occurs.
trauma to the nose is the most common cause of a deviated septum.
Possible course of treatment:
a prescription nasal spray which shrinks down the turbinates in a non-addicting
fashion or surgery on the nasal septum to make the septum straight.